diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d1b3f446..738a43d9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -132,12 +132,12 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ### Changed
 - **Architecture: Thin orchestrator pattern** — Commands now delegate to workflows, reducing command file size by ~75% and improving maintainability
-- **Centralized utilities** — New `gsd-tools.js` (11 functions) replaces repetitive bash patterns across 50+ files
+- **Centralized utilities** — New `gsd-tools.cjs` (11 functions) replaces repetitive bash patterns across 50+ files
 - **Token reduction** — ~22k characters removed from affected command/workflow/agent files
 - **Condensed agent prompts** — Same behavior with fewer words (executor, planner, verifier, researcher agents)
 
 ### Added
-- `gsd-tools.js` CLI utility with functions: state load/update, resolve-model, find-phase, commit, verify-summary, generate-slug, current-timestamp, list-todos, verify-path-exists, config-ensure-section
+- `gsd-tools.cjs` CLI utility with functions: state load/update, resolve-model, find-phase, commit, verify-summary, generate-slug, current-timestamp, list-todos, verify-path-exists, config-ensure-section
 
 ## [1.11.2] - 2026-02-05
 
diff --git a/agents/gsd-debugger.md b/agents/gsd-debugger.md
index db354673b..4413c99eb 100644
--- a/agents/gsd-debugger.md
+++ b/agents/gsd-debugger.md
@@ -982,7 +982,7 @@ mv .planning/debug/{slug}.md .planning/debug/resolved/
 **Check planning config using state load (commit_docs is available from the output):**
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js state load)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs state load)
 # commit_docs is in the JSON output
 ```
 
@@ -999,7 +999,7 @@ Root cause: {root_cause}"
 
 Then commit planning docs via CLI (respects `commit_docs` config automatically):
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: resolve debug {slug}" --files .planning/debug/resolved/{slug}.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: resolve debug {slug}" --files .planning/debug/resolved/{slug}.md
 ```
 
 Report completion and offer next steps.
diff --git a/agents/gsd-executor.md b/agents/gsd-executor.md
index 86a0c7d58..93c988b34 100644
--- a/agents/gsd-executor.md
+++ b/agents/gsd-executor.md
@@ -19,7 +19,7 @@ Your job: Execute the plan completely, commit each task, create SUMMARY.md, upda
 Load execution context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init execute-phase "${PHASE}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init execute-phase "${PHASE}")
 ```
 
 Extract from init JSON: `executor_model`, `commit_docs`, `phase_dir`, `plans`, `incomplete_plans`.
@@ -329,24 +329,24 @@ After SUMMARY.md, update STATE.md using gsd-tools:
 
 ```bash
 # Advance plan counter (handles edge cases automatically)
-node ~/.claude/get-shit-done/bin/gsd-tools.js state advance-plan
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state advance-plan
 
 # Recalculate progress bar from disk state
-node ~/.claude/get-shit-done/bin/gsd-tools.js state update-progress
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state update-progress
 
 # Record execution metrics
-node ~/.claude/get-shit-done/bin/gsd-tools.js state record-metric \
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state record-metric \
   --phase "${PHASE}" --plan "${PLAN}" --duration "${DURATION}" \
   --tasks "${TASK_COUNT}" --files "${FILE_COUNT}"
 
 # Add decisions (extract from SUMMARY.md key-decisions)
 for decision in "${DECISIONS[@]}"; do
-  node ~/.claude/get-shit-done/bin/gsd-tools.js state add-decision \
+  node ~/.claude/get-shit-done/bin/gsd-tools.cjs state add-decision \
     --phase "${PHASE}" --summary "${decision}"
 done
 
 # Update session info
-node ~/.claude/get-shit-done/bin/gsd-tools.js state record-session \
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state record-session \
   --stopped-at "Completed ${PHASE}-${PLAN}-PLAN.md"
 ```
 
@@ -361,13 +361,13 @@ node ~/.claude/get-shit-done/bin/gsd-tools.js state record-session \
 
 **For blockers found during execution:**
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js state add-blocker "Blocker description"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state add-blocker "Blocker description"
 ```
 </state_updates>
 
 <final_commit>
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs({phase}-{plan}): complete [plan-name] plan" --files .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs({phase}-{plan}): complete [plan-name] plan" --files .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/STATE.md
 ```
 
 Separate from per-task commits — captures execution results only.
diff --git a/agents/gsd-phase-researcher.md b/agents/gsd-phase-researcher.md
index f591cdd45..c6fd0f534 100644
--- a/agents/gsd-phase-researcher.md
+++ b/agents/gsd-phase-researcher.md
@@ -102,7 +102,7 @@ When researching "best library for X": find what the ecosystem actually uses, do
 Check `brave_search` from init context. If `true`, use Brave Search for higher quality results:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js websearch "your query" --limit 10
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs websearch "your query" --limit 10
 ```
 
 **Options:**
@@ -311,7 +311,7 @@ Orchestrator provides: phase number/name, description/goal, requirements, constr
 
 Load phase context using init command:
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "${PHASE}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "${PHASE}")
 ```
 
 Extract from init JSON: `phase_dir`, `padded_phase`, `phase_number`, `commit_docs`.
@@ -384,7 +384,7 @@ Write to: `$PHASE_DIR/$PADDED_PHASE-RESEARCH.md`
 ## Step 6: Commit Research (optional)
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs($PHASE): research phase domain" --files "$PHASE_DIR/$PADDED_PHASE-RESEARCH.md"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs($PHASE): research phase domain" --files "$PHASE_DIR/$PADDED_PHASE-RESEARCH.md"
 ```
 
 ## Step 7: Return Structured Result
diff --git a/agents/gsd-plan-checker.md b/agents/gsd-plan-checker.md
index 54d24d2ab..c26a7bd56 100644
--- a/agents/gsd-plan-checker.md
+++ b/agents/gsd-plan-checker.md
@@ -299,7 +299,7 @@ issue:
 
 Load phase operation context:
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "${PHASE_ARG}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "${PHASE_ARG}")
 ```
 
 Extract from init JSON: `phase_dir`, `phase_number`, `has_plans`, `plan_count`.
@@ -308,7 +308,7 @@ Orchestrator provides CONTEXT.md content in the verification prompt. If provided
 
 ```bash
 ls "$phase_dir"/*-PLAN.md 2>/dev/null
-node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "$phase_number"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "$phase_number"
 ls "$phase_dir"/*-BRIEF.md 2>/dev/null
 ```
 
@@ -321,7 +321,7 @@ Use gsd-tools to validate plan structure:
 ```bash
 for plan in "$PHASE_DIR"/*-PLAN.md; do
   echo "=== $plan ==="
-  PLAN_STRUCTURE=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify plan-structure "$plan")
+  PLAN_STRUCTURE=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify plan-structure "$plan")
   echo "$PLAN_STRUCTURE"
 done
 ```
@@ -339,7 +339,7 @@ Map errors/warnings to verification dimensions:
 Extract must_haves from each plan using gsd-tools:
 
 ```bash
-MUST_HAVES=$(node ~/.claude/get-shit-done/bin/gsd-tools.js frontmatter get "$PLAN_PATH" --field must_haves)
+MUST_HAVES=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs frontmatter get "$PLAN_PATH" --field must_haves)
 ```
 
 Returns JSON: `{ truths: [...], artifacts: [...], key_links: [...] }`
@@ -382,7 +382,7 @@ For each requirement: find covering task(s), verify action is specific, flag gap
 Use gsd-tools plan-structure verification (already run in Step 2):
 
 ```bash
-PLAN_STRUCTURE=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify plan-structure "$PLAN_PATH")
+PLAN_STRUCTURE=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify plan-structure "$PLAN_PATH")
 ```
 
 The `tasks` array in the result shows each task's completeness:
diff --git a/agents/gsd-planner.md b/agents/gsd-planner.md
index a2cd94ed8..f2d69aad4 100644
--- a/agents/gsd-planner.md
+++ b/agents/gsd-planner.md
@@ -794,7 +794,7 @@ Group by plan, dimension, severity.
 ### Step 6: Commit
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "fix($PHASE): revise plans based on checker feedback" --files .planning/phases/$PHASE-*/$PHASE-*-PLAN.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "fix($PHASE): revise plans based on checker feedback" --files .planning/phases/$PHASE-*/$PHASE-*-PLAN.md
 ```
 
 ### Step 7: Return Revision Summary
@@ -833,7 +833,7 @@ node ~/.claude/get-shit-done/bin/gsd-tools.js commit "fix($PHASE): revise plans
 Load planning context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init plan-phase "${PHASE}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init plan-phase "${PHASE}")
 ```
 
 Extract from init JSON: `planner_model`, `researcher_model`, `checker_model`, `commit_docs`, `research_enabled`, `phase_dir`, `phase_number`, `has_research`, `has_context`.
@@ -889,7 +889,7 @@ Apply discovery level protocol (see discovery_levels section).
 
 **Step 1 — Generate digest index:**
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js history-digest
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs history-digest
 ```
 
 **Step 2 — Select relevant phases (typically 2-4):**
@@ -1007,7 +1007,7 @@ Include all frontmatter fields.
 Validate each created PLAN.md using gsd-tools:
 
 ```bash
-VALID=$(node ~/.claude/get-shit-done/bin/gsd-tools.js frontmatter validate "$PLAN_PATH" --schema plan)
+VALID=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs frontmatter validate "$PLAN_PATH" --schema plan)
 ```
 
 Returns JSON: `{ valid, missing, present, schema }`
@@ -1020,7 +1020,7 @@ Required plan frontmatter fields:
 Also validate plan structure:
 
 ```bash
-STRUCTURE=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify plan-structure "$PLAN_PATH")
+STRUCTURE=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify plan-structure "$PLAN_PATH")
 ```
 
 Returns JSON: `{ valid, errors, warnings, task_count, tasks }`
@@ -1057,7 +1057,7 @@ Plans:
 
 <step name="git_commit">
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs($PHASE): create phase plan" --files .planning/phases/$PHASE-*/$PHASE-*-PLAN.md .planning/ROADMAP.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs($PHASE): create phase plan" --files .planning/phases/$PHASE-*/$PHASE-*-PLAN.md .planning/ROADMAP.md
 ```
 </step>
 
diff --git a/agents/gsd-project-researcher.md b/agents/gsd-project-researcher.md
index c872e00aa..e4b9f46ed 100644
--- a/agents/gsd-project-researcher.md
+++ b/agents/gsd-project-researcher.md
@@ -96,7 +96,7 @@ Always include current year. Use multiple query variations. Mark WebSearch-only
 Check `brave_search` from orchestrator context. If `true`, use Brave Search for higher quality results:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js websearch "your query" --limit 10
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs websearch "your query" --limit 10
 ```
 
 **Options:**
diff --git a/agents/gsd-research-synthesizer.md b/agents/gsd-research-synthesizer.md
index bd6fd5440..87c48b280 100644
--- a/agents/gsd-research-synthesizer.md
+++ b/agents/gsd-research-synthesizer.md
@@ -49,7 +49,7 @@ cat .planning/research/FEATURES.md
 cat .planning/research/ARCHITECTURE.md
 cat .planning/research/PITFALLS.md
 
-# Planning config loaded via gsd-tools.js in commit step
+# Planning config loaded via gsd-tools.cjs in commit step
 ```
 
 Parse each file to extract:
@@ -128,7 +128,7 @@ Write to `.planning/research/SUMMARY.md`
 The 4 parallel researcher agents write files but do NOT commit. You commit everything together.
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: complete project research" --files .planning/research/
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: complete project research" --files .planning/research/
 ```
 
 ## Step 8: Return Summary
diff --git a/agents/gsd-verifier.md b/agents/gsd-verifier.md
index d0b81b665..825dba3d1 100644
--- a/agents/gsd-verifier.md
+++ b/agents/gsd-verifier.md
@@ -54,7 +54,7 @@ Set `is_re_verification = false`, proceed with Step 1.
 ```bash
 ls "$PHASE_DIR"/*-PLAN.md 2>/dev/null
 ls "$PHASE_DIR"/*-SUMMARY.md 2>/dev/null
-node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "$PHASE_NUM"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "$PHASE_NUM"
 grep -E "^| $PHASE_NUM" .planning/REQUIREMENTS.md 2>/dev/null
 ```
 
@@ -91,7 +91,7 @@ must_haves:
 If no must_haves in frontmatter, check for Success Criteria:
 
 ```bash
-PHASE_DATA=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "$PHASE_NUM" --raw)
+PHASE_DATA=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "$PHASE_NUM" --raw)
 ```
 
 Parse the `success_criteria` array from the JSON output. If non-empty:
@@ -134,7 +134,7 @@ For each truth:
 Use gsd-tools for artifact verification against must_haves in PLAN frontmatter:
 
 ```bash
-ARTIFACT_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify artifacts "$PLAN_PATH")
+ARTIFACT_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify artifacts "$PLAN_PATH")
 ```
 
 Parse JSON result: `{ all_passed, passed, total, artifacts: [{path, exists, issues, passed}] }`
@@ -183,7 +183,7 @@ Key links are critical connections. If broken, the goal fails even with all arti
 Use gsd-tools for key link verification against must_haves in PLAN frontmatter:
 
 ```bash
-LINKS_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify key-links "$PLAN_PATH")
+LINKS_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify key-links "$PLAN_PATH")
 ```
 
 Parse JSON result: `{ all_verified, verified, total, links: [{from, to, via, verified, detail}] }`
@@ -251,12 +251,12 @@ Identify files modified in this phase from SUMMARY.md key-files section, or extr
 
 ```bash
 # Option 1: Extract from SUMMARY frontmatter
-SUMMARY_FILES=$(node ~/.claude/get-shit-done/bin/gsd-tools.js summary-extract "$PHASE_DIR"/*-SUMMARY.md --fields key-files)
+SUMMARY_FILES=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs summary-extract "$PHASE_DIR"/*-SUMMARY.md --fields key-files)
 
 # Option 2: Verify commits exist (if commit hashes documented)
 COMMIT_HASHES=$(grep -oE "[a-f0-9]{7,40}" "$PHASE_DIR"/*-SUMMARY.md | head -10)
 if [ -n "$COMMIT_HASHES" ]; then
-  COMMITS_VALID=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify commits $COMMIT_HASHES)
+  COMMITS_VALID=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify commits $COMMIT_HASHES)
 fi
 
 # Fallback: grep for files
diff --git a/commands/gsd/debug.md b/commands/gsd/debug.md
index 23dfa11e9..d0014bb76 100644
--- a/commands/gsd/debug.md
+++ b/commands/gsd/debug.md
@@ -31,12 +31,12 @@ ls .planning/debug/*.md 2>/dev/null | grep -v resolved | head -5
 ## 0. Initialize Context
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js state load)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs state load)
 ```
 
 Extract `commit_docs` from init JSON. Resolve debugger model:
 ```bash
-DEBUGGER_MODEL=$(node ~/.claude/get-shit-done/bin/gsd-tools.js resolve-model gsd-debugger --raw)
+DEBUGGER_MODEL=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs resolve-model gsd-debugger --raw)
 ```
 
 ## 1. Check Active Sessions
diff --git a/commands/gsd/research-phase.md b/commands/gsd/research-phase.md
index 79971ecdf..b589cf317 100644
--- a/commands/gsd/research-phase.md
+++ b/commands/gsd/research-phase.md
@@ -34,20 +34,20 @@ Normalize phase input in step 1 before any directory lookups.
 ## 0. Initialize Context
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "$ARGUMENTS")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "$ARGUMENTS")
 ```
 
 Extract from init JSON: `phase_dir`, `phase_number`, `phase_name`, `phase_found`, `commit_docs`, `has_research`.
 
 Resolve researcher model:
 ```bash
-RESEARCHER_MODEL=$(node ~/.claude/get-shit-done/bin/gsd-tools.js resolve-model gsd-phase-researcher --raw)
+RESEARCHER_MODEL=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs resolve-model gsd-phase-researcher --raw)
 ```
 
 ## 1. Validate Phase
 
 ```bash
-PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "${phase_number}")
+PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "${phase_number}")
 ```
 
 **If `found` is false:** Error and exit. **If `found` is true:** Extract `phase_number`, `phase_name`, `goal` from JSON.
diff --git a/get-shit-done/bin/gsd-tools.js b/get-shit-done/bin/gsd-tools.cjs
similarity index 99%
rename from get-shit-done/bin/gsd-tools.js
rename to get-shit-done/bin/gsd-tools.cjs
index 18e17251b..08e893779 100755
--- a/get-shit-done/bin/gsd-tools.js
+++ b/get-shit-done/bin/gsd-tools.cjs
@@ -6,7 +6,7 @@
  * Replaces repetitive inline bash patterns across ~50 GSD command/workflow/agent files.
  * Centralizes: config parsing, model resolution, phase lookup, git commits, summary verification.
  *
- * Usage: node gsd-tools.js <command> [args] [--raw]
+ * Usage: node gsd-tools.cjs <command> [args] [--raw]
  *
  * Atomic Commands:
  *   state load                         Load project config + state
diff --git a/get-shit-done/bin/gsd-tools.test.js b/get-shit-done/bin/gsd-tools.test.cjs
similarity index 99%
rename from get-shit-done/bin/gsd-tools.test.js
rename to get-shit-done/bin/gsd-tools.test.cjs
index ebac13d1f..8e9cf5624 100644
--- a/get-shit-done/bin/gsd-tools.test.js
+++ b/get-shit-done/bin/gsd-tools.test.cjs
@@ -8,7 +8,7 @@ const fs = require('fs');
 const path = require('path');
 const { execSync } = require('child_process');
 
-const TOOLS_PATH = path.join(__dirname, 'gsd-tools.js');
+const TOOLS_PATH = path.join(__dirname, 'gsd-tools.cjs');
 
 // Helper to run gsd-tools command
 function runGsdTools(args, cwd = process.cwd()) {
diff --git a/get-shit-done/references/decimal-phase-calculation.md b/get-shit-done/references/decimal-phase-calculation.md
index 3bc95fcfa..8597d7e30 100644
--- a/get-shit-done/references/decimal-phase-calculation.md
+++ b/get-shit-done/references/decimal-phase-calculation.md
@@ -6,7 +6,7 @@ Calculate the next decimal phase number for urgent insertions.
 
 ```bash
 # Get next decimal phase after phase 6
-node ~/.claude/get-shit-done/bin/gsd-tools.js phase next-decimal 6
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase next-decimal 6
 ```
 
 Output:
@@ -32,14 +32,14 @@ With existing decimals:
 ## Extract Values
 
 ```bash
-DECIMAL_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase next-decimal "${AFTER_PHASE}")
+DECIMAL_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase next-decimal "${AFTER_PHASE}")
 DECIMAL_PHASE=$(echo "$DECIMAL_INFO" | jq -r '.next')
 BASE_PHASE=$(echo "$DECIMAL_INFO" | jq -r '.base_phase')
 ```
 
 Or with --raw flag:
 ```bash
-DECIMAL_PHASE=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase next-decimal "${AFTER_PHASE}" --raw)
+DECIMAL_PHASE=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase next-decimal "${AFTER_PHASE}" --raw)
 # Returns just: 06.1
 ```
 
@@ -57,7 +57,7 @@ DECIMAL_PHASE=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase next-decimal
 Decimal phase directories use the full decimal number:
 
 ```bash
-SLUG=$(node ~/.claude/get-shit-done/bin/gsd-tools.js generate-slug "$DESCRIPTION" --raw)
+SLUG=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs generate-slug "$DESCRIPTION" --raw)
 PHASE_DIR=".planning/phases/${DECIMAL_PHASE}-${SLUG}"
 mkdir -p "$PHASE_DIR"
 ```
diff --git a/get-shit-done/references/git-integration.md b/get-shit-done/references/git-integration.md
index 44e2164ee..df086b9c1 100644
--- a/get-shit-done/references/git-integration.md
+++ b/get-shit-done/references/git-integration.md
@@ -51,7 +51,7 @@ Phases:
 What to commit:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: initialize [project-name] ([N] phases)" --files .planning/
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: initialize [project-name] ([N] phases)" --files .planning/
 ```
 
 </format>
@@ -129,7 +129,7 @@ SUMMARY: .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md
 What to commit:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs({phase}-{plan}): complete [plan-name] plan" --files .planning/phases/XX-name/{phase}-{plan}-PLAN.md .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/STATE.md .planning/ROADMAP.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs({phase}-{plan}): complete [plan-name] plan" --files .planning/phases/XX-name/{phase}-{plan}-PLAN.md .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/STATE.md .planning/ROADMAP.md
 ```
 
 **Note:** Code files NOT included - already committed per-task.
@@ -149,7 +149,7 @@ Current: [task name]
 What to commit:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "wip: [phase-name] paused at task [X]/[Y]" --files .planning/
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "wip: [phase-name] paused at task [X]/[Y]" --files .planning/
 ```
 
 </format>
diff --git a/get-shit-done/references/git-planning-commit.md b/get-shit-done/references/git-planning-commit.md
index 11c19e3b2..aad427440 100644
--- a/get-shit-done/references/git-planning-commit.md
+++ b/get-shit-done/references/git-planning-commit.md
@@ -4,10 +4,10 @@ Commit planning artifacts using the gsd-tools CLI, which automatically checks `c
 
 ## Commit via CLI
 
-Always use `gsd-tools.js commit` for `.planning/` files — it handles `commit_docs` and gitignore checks automatically:
+Always use `gsd-tools.cjs commit` for `.planning/` files — it handles `commit_docs` and gitignore checks automatically:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs({scope}): {description}" --files .planning/STATE.md .planning/ROADMAP.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs({scope}): {description}" --files .planning/STATE.md .planning/ROADMAP.md
 ```
 
 The CLI will return `skipped` (with reason) if `commit_docs` is `false` or `.planning/` is gitignored. No manual conditional checks needed.
@@ -17,7 +17,7 @@ The CLI will return `skipped` (with reason) if `commit_docs` is `false` or `.pla
 To fold `.planning/` file changes into the previous commit:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "" --files .planning/codebase/*.md --amend
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "" --files .planning/codebase/*.md --amend
 ```
 
 ## Commit Message Patterns
diff --git a/get-shit-done/references/phase-argument-parsing.md b/get-shit-done/references/phase-argument-parsing.md
index b615dc28f..85f90651b 100644
--- a/get-shit-done/references/phase-argument-parsing.md
+++ b/get-shit-done/references/phase-argument-parsing.md
@@ -14,7 +14,7 @@ From `$ARGUMENTS`:
 The `find-phase` command handles normalization and validation in one step:
 
 ```bash
-PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.js find-phase "${PHASE}")
+PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs find-phase "${PHASE}")
 ```
 
 Returns JSON with:
@@ -45,7 +45,7 @@ fi
 Use `roadmap get-phase` to validate phase exists:
 
 ```bash
-PHASE_CHECK=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "${PHASE}")
+PHASE_CHECK=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "${PHASE}")
 if [ "$(echo "$PHASE_CHECK" | jq -r '.found')" = "false" ]; then
   echo "ERROR: Phase ${PHASE} not found in roadmap"
   exit 1
@@ -57,5 +57,5 @@ fi
 Use `find-phase` for directory lookup:
 
 ```bash
-PHASE_DIR=$(node ~/.claude/get-shit-done/bin/gsd-tools.js find-phase "${PHASE}" --raw)
+PHASE_DIR=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs find-phase "${PHASE}" --raw)
 ```
diff --git a/get-shit-done/references/planning-config.md b/get-shit-done/references/planning-config.md
index a7f09b26d..867ac0c2c 100644
--- a/get-shit-done/references/planning-config.md
+++ b/get-shit-done/references/planning-config.md
@@ -36,18 +36,18 @@ Configuration options for `.planning/` directory behavior.
 - User must add `.planning/` to `.gitignore`
 - Useful for: OSS contributions, client projects, keeping planning private
 
-**Using gsd-tools.js (preferred):**
+**Using gsd-tools.cjs (preferred):**
 
 ```bash
 # Commit with automatic commit_docs + gitignore checks:
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: update state" --files .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: update state" --files .planning/STATE.md
 
 # Load config via state load (returns JSON):
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js state load)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs state load)
 # commit_docs is available in the JSON output
 
 # Or use init commands which include commit_docs:
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init execute-phase "1")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init execute-phase "1")
 # commit_docs is included in all init command outputs
 ```
 
@@ -56,7 +56,7 @@ INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init execute-phase "1")
 **Commit via CLI (handles checks automatically):**
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: update state" --files .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: update state" --files .planning/STATE.md
 ```
 
 The CLI checks `commit_docs` config and gitignore status internally — no manual conditionals needed.
@@ -142,13 +142,13 @@ To use uncommitted mode:
 
 Use `init execute-phase` which returns all config as JSON:
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init execute-phase "1")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init execute-phase "1")
 # JSON output includes: branching_strategy, phase_branch_template, milestone_branch_template
 ```
 
 Or use `state load` for the config values:
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js state load)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs state load)
 # Parse branching_strategy, phase_branch_template, milestone_branch_template from JSON
 ```
 
diff --git a/get-shit-done/workflows/add-phase.md b/get-shit-done/workflows/add-phase.md
index 6d04e76d0..c64727b2e 100644
--- a/get-shit-done/workflows/add-phase.md
+++ b/get-shit-done/workflows/add-phase.md
@@ -29,7 +29,7 @@ Exit.
 Load phase operation context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "0")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "0")
 ```
 
 Check `roadmap_exists` from init JSON. If false:
@@ -44,7 +44,7 @@ Exit.
 **Delegate the phase addition to gsd-tools:**
 
 ```bash
-RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase add "${description}")
+RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase add "${description}")
 ```
 
 The CLI handles:
diff --git a/get-shit-done/workflows/add-todo.md b/get-shit-done/workflows/add-todo.md
index 39c3737fd..e8834a21f 100644
--- a/get-shit-done/workflows/add-todo.md
+++ b/get-shit-done/workflows/add-todo.md
@@ -12,7 +12,7 @@ Read all files referenced by the invoking prompt's execution_context before star
 Load todo context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init todos)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init todos)
 ```
 
 Extract from init JSON: `commit_docs`, `date`, `timestamp`, `todo_count`, `todos`, `pending_dir`, `todos_dir_exists`.
@@ -83,7 +83,7 @@ Use values from init context: `timestamp` and `date` are already available.
 
 Generate slug for the title:
 ```bash
-slug=$(node ~/.claude/get-shit-done/bin/gsd-tools.js generate-slug "$title" --raw)
+slug=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs generate-slug "$title" --raw)
 ```
 
 Write to `.planning/todos/pending/${date}-${slug}.md`:
@@ -118,7 +118,7 @@ If `.planning/STATE.md` exists:
 Commit the todo and any updated state:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: capture todo - [title]" --files .planning/todos/pending/[filename] .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: capture todo - [title]" --files .planning/todos/pending/[filename] .planning/STATE.md
 ```
 
 Tool respects `commit_docs` config and gitignore automatically.
diff --git a/get-shit-done/workflows/audit-milestone.md b/get-shit-done/workflows/audit-milestone.md
index 53dda8149..e10c23fa1 100644
--- a/get-shit-done/workflows/audit-milestone.md
+++ b/get-shit-done/workflows/audit-milestone.md
@@ -11,21 +11,21 @@ Read all files referenced by the invoking prompt's execution_context before star
 ## 0. Initialize Milestone Context
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init milestone-op)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init milestone-op)
 ```
 
 Extract from init JSON: `milestone_version`, `milestone_name`, `phase_count`, `completed_phases`, `commit_docs`.
 
 Resolve integration checker model:
 ```bash
-CHECKER_MODEL=$(node ~/.claude/get-shit-done/bin/gsd-tools.js resolve-model gsd-integration-checker --raw)
+CHECKER_MODEL=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs resolve-model gsd-integration-checker --raw)
 ```
 
 ## 1. Determine Milestone Scope
 
 ```bash
 # Get phases in milestone (sorted numerically, handles decimals)
-node ~/.claude/get-shit-done/bin/gsd-tools.js phases list
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs phases list
 ```
 
 - Parse version from arguments or detect current from ROADMAP.md
diff --git a/get-shit-done/workflows/check-todos.md b/get-shit-done/workflows/check-todos.md
index e16d1bed5..ce6d3eee4 100644
--- a/get-shit-done/workflows/check-todos.md
+++ b/get-shit-done/workflows/check-todos.md
@@ -12,7 +12,7 @@ Read all files referenced by the invoking prompt's execution_context before star
 Load todo context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init todos)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init todos)
 ```
 
 Extract from init JSON: `todo_count`, `todos`, `pending_dir`.
@@ -154,7 +154,7 @@ If todo was moved to done/, commit the change:
 
 ```bash
 git rm --cached .planning/todos/pending/[filename] 2>/dev/null || true
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: start work on todo - [title]" --files .planning/todos/done/[filename] .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: start work on todo - [title]" --files .planning/todos/done/[filename] .planning/STATE.md
 ```
 
 Tool respects `commit_docs` config and gitignore automatically.
diff --git a/get-shit-done/workflows/complete-milestone.md b/get-shit-done/workflows/complete-milestone.md
index b91e41cc0..4abfd64f0 100644
--- a/get-shit-done/workflows/complete-milestone.md
+++ b/get-shit-done/workflows/complete-milestone.md
@@ -40,7 +40,7 @@ When a milestone completes:
 **Use `roadmap analyze` for comprehensive readiness check:**
 
 ```bash
-ROADMAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap analyze)
+ROADMAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap analyze)
 ```
 
 This returns all phases with plan/summary counts and disk status. Use this to verify:
@@ -131,7 +131,7 @@ Extract one-liners from SUMMARY.md files using summary-extract:
 ```bash
 # For each phase in milestone, extract one-liner
 for summary in .planning/phases/*-*/*-SUMMARY.md; do
-  node ~/.claude/get-shit-done/bin/gsd-tools.js summary-extract "$summary" --fields one_liner | jq -r '.one_liner'
+  node ~/.claude/get-shit-done/bin/gsd-tools.cjs summary-extract "$summary" --fields one_liner | jq -r '.one_liner'
 done
 ```
 
@@ -344,7 +344,7 @@ Update `.planning/ROADMAP.md` — group completed milestone phases:
 **Delegate archival to gsd-tools:**
 
 ```bash
-ARCHIVE=$(node ~/.claude/get-shit-done/bin/gsd-tools.js milestone complete "v[X.Y]" --name "[Milestone Name]")
+ARCHIVE=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs milestone complete "v[X.Y]" --name "[Milestone Name]")
 ```
 
 The CLI handles:
@@ -432,7 +432,7 @@ Check branching strategy and offer merge options.
 Use `init milestone-op` for context, or load config directly:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init execute-phase "1")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init execute-phase "1")
 ```
 
 Extract `branching_strategy`, `phase_branch_template`, `milestone_branch_template` from init JSON.
@@ -562,7 +562,7 @@ git push origin v[X.Y]
 Commit milestone completion.
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "chore: complete v[X.Y] milestone" --files .planning/milestones/v[X.Y]-ROADMAP.md .planning/milestones/v[X.Y]-REQUIREMENTS.md .planning/milestones/v[X.Y]-MILESTONE-AUDIT.md .planning/MILESTONES.md .planning/PROJECT.md .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "chore: complete v[X.Y] milestone" --files .planning/milestones/v[X.Y]-ROADMAP.md .planning/milestones/v[X.Y]-REQUIREMENTS.md .planning/milestones/v[X.Y]-MILESTONE-AUDIT.md .planning/MILESTONES.md .planning/PROJECT.md .planning/STATE.md
 ```
 ```
 
diff --git a/get-shit-done/workflows/diagnose-issues.md b/get-shit-done/workflows/diagnose-issues.md
index 7b5b866f8..b30245865 100644
--- a/get-shit-done/workflows/diagnose-issues.md
+++ b/get-shit-done/workflows/diagnose-issues.md
@@ -158,7 +158,7 @@ Update status in frontmatter to "diagnosed".
 
 Commit the updated UAT.md:
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs({phase_num}): add root causes from diagnosis" --files ".planning/phases/XX-name/{phase_num}-UAT.md"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs({phase_num}): add root causes from diagnosis" --files ".planning/phases/XX-name/{phase_num}-UAT.md"
 ```
 </step>
 
diff --git a/get-shit-done/workflows/discuss-phase.md b/get-shit-done/workflows/discuss-phase.md
index 178c25471..4104f9aca 100644
--- a/get-shit-done/workflows/discuss-phase.md
+++ b/get-shit-done/workflows/discuss-phase.md
@@ -111,7 +111,7 @@ Phase: "API documentation"
 Phase number from argument (required).
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "${PHASE}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "${PHASE}")
 ```
 
 Parse JSON for: `commit_docs`, `phase_found`, `phase_dir`, `phase_number`, `phase_name`, `phase_slug`, `padded_phase`, `has_research`, `has_context`, `has_plans`, `has_verification`, `plan_count`, `roadmap_exists`, `planning_exists`.
@@ -389,7 +389,7 @@ Created: .planning/phases/${PADDED_PHASE}-${SLUG}/${PADDED_PHASE}-CONTEXT.md
 Commit phase context (uses `commit_docs` from init internally):
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs(${padded_phase}): capture phase context" --files "${phase_dir}/${padded_phase}-CONTEXT.md"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs(${padded_phase}): capture phase context" --files "${phase_dir}/${padded_phase}-CONTEXT.md"
 ```
 
 Confirm: "Committed: docs(${padded_phase}): capture phase context"
@@ -399,7 +399,7 @@ Confirm: "Committed: docs(${padded_phase}): capture phase context"
 Update STATE.md with session info:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js state record-session \
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state record-session \
   --stopped-at "Phase ${PHASE} context gathered" \
   --resume-file "${phase_dir}/${padded_phase}-CONTEXT.md"
 ```
@@ -407,7 +407,7 @@ node ~/.claude/get-shit-done/bin/gsd-tools.js state record-session \
 Commit STATE.md:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs(state): record phase ${PHASE} context session" --files .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs(state): record phase ${PHASE} context session" --files .planning/STATE.md
 ```
 </step>
 
@@ -417,7 +417,7 @@ Check for auto-advance trigger:
 1. Parse `--auto` flag from $ARGUMENTS
 2. Read `workflow.auto_advance` from config:
    ```bash
-   AUTO_CFG=$(node ~/.claude/get-shit-done/bin/gsd-tools.js config get workflow.auto_advance 2>/dev/null || echo "false")
+   AUTO_CFG=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs config get workflow.auto_advance 2>/dev/null || echo "false")
    ```
 
 **If `--auto` flag present OR `AUTO_CFG` is true:**
diff --git a/get-shit-done/workflows/execute-phase.md b/get-shit-done/workflows/execute-phase.md
index 5c1d25443..6a5390a7c 100644
--- a/get-shit-done/workflows/execute-phase.md
+++ b/get-shit-done/workflows/execute-phase.md
@@ -16,7 +16,7 @@ Read STATE.md before any operation to load project context.
 Load all context in one call:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init execute-phase "${PHASE_ARG}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init execute-phase "${PHASE_ARG}")
 ```
 
 Parse JSON for: `executor_model`, `verifier_model`, `commit_docs`, `parallelization`, `branching_strategy`, `branch_name`, `phase_found`, `phase_dir`, `phase_number`, `phase_name`, `phase_slug`, `plans`, `incomplete_plans`, `plan_count`, `incomplete_count`, `state_exists`, `roadmap_exists`.
@@ -51,7 +51,7 @@ Report: "Found {plan_count} plans in {phase_dir} ({incomplete_count} incomplete)
 Load plan inventory with wave grouping in one call:
 
 ```bash
-PLAN_INDEX=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase-plan-index "${PHASE_NUMBER}")
+PLAN_INDEX=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase-plan-index "${PHASE_NUMBER}")
 ```
 
 Parse JSON for: `phase`, `plans[]` (each with `id`, `wave`, `autonomous`, `objective`, `files_modified`, `task_count`, `has_summary`), `waves` (map of wave number → plan IDs), `incomplete`, `has_checkpoints`.
@@ -271,7 +271,7 @@ mv .planning/debug/{slug}.md .planning/debug/resolved/
 
 **6. Commit updated artifacts:**
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs(phase-${PARENT_PHASE}): resolve UAT gaps and debug sessions after ${PHASE_NUMBER} gap closure" --files .planning/phases/*${PARENT_PHASE}*/*-UAT.md .planning/debug/resolved/*.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs(phase-${PARENT_PHASE}): resolve UAT gaps and debug sessions after ${PHASE_NUMBER} gap closure" --files .planning/phases/*${PARENT_PHASE}*/*-UAT.md .planning/debug/resolved/*.md
 ```
 </step>
 
@@ -339,7 +339,7 @@ Gap closure cycle: `/gsd:plan-phase {X} --gaps` reads VERIFICATION.md → create
 **Mark phase complete and update all tracking files:**
 
 ```bash
-COMPLETION=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase complete "${PHASE_NUMBER}")
+COMPLETION=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase complete "${PHASE_NUMBER}")
 ```
 
 The CLI handles:
@@ -352,7 +352,7 @@ The CLI handles:
 Extract from result: `next_phase`, `next_phase_name`, `is_last_phase`.
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs(phase-{X}): complete phase execution" --files .planning/ROADMAP.md .planning/STATE.md .planning/REQUIREMENTS.md .planning/phases/{phase_dir}/*-VERIFICATION.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs(phase-{X}): complete phase execution" --files .planning/ROADMAP.md .planning/STATE.md .planning/REQUIREMENTS.md .planning/phases/{phase_dir}/*-VERIFICATION.md
 ```
 </step>
 
diff --git a/get-shit-done/workflows/execute-plan.md b/get-shit-done/workflows/execute-plan.md
index 7cac857d7..7a489adbd 100644
--- a/get-shit-done/workflows/execute-plan.md
+++ b/get-shit-done/workflows/execute-plan.md
@@ -15,7 +15,7 @@ Read config.json for planning behavior settings.
 Load execution context (uses `init execute-phase` for full context, including file contents):
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init execute-phase "${PHASE}" --include state,config)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init execute-phase "${PHASE}" --include state,config)
 ```
 
 Extract from init JSON: `executor_model`, `commit_docs`, `phase_dir`, `phase_number`, `plans`, `summaries`, `incomplete_plans`.
@@ -337,13 +337,13 @@ Update STATE.md using gsd-tools:
 
 ```bash
 # Advance plan counter (handles last-plan edge case)
-node ~/.claude/get-shit-done/bin/gsd-tools.js state advance-plan
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state advance-plan
 
 # Recalculate progress bar from disk state
-node ~/.claude/get-shit-done/bin/gsd-tools.js state update-progress
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state update-progress
 
 # Record execution metrics
-node ~/.claude/get-shit-done/bin/gsd-tools.js state record-metric \
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state record-metric \
   --phase "${PHASE}" --plan "${PLAN}" --duration "${DURATION}" \
   --tasks "${TASK_COUNT}" --files "${FILE_COUNT}"
 ```
@@ -354,11 +354,11 @@ From SUMMARY: Extract decisions and add to STATE.md:
 
 ```bash
 # Add each decision from SUMMARY key-decisions
-node ~/.claude/get-shit-done/bin/gsd-tools.js state add-decision \
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state add-decision \
   --phase "${PHASE}" --summary "${DECISION_TEXT}" --rationale "${RATIONALE}"
 
 # Add blockers if any found
-node ~/.claude/get-shit-done/bin/gsd-tools.js state add-blocker "Blocker description"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state add-blocker "Blocker description"
 ```
 </step>
 
@@ -366,7 +366,7 @@ node ~/.claude/get-shit-done/bin/gsd-tools.js state add-blocker "Blocker descrip
 Update session info using gsd-tools:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js state record-session \
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state record-session \
   --stopped-at "Completed ${PHASE}-${PLAN}-PLAN.md" \
   --resume-file "None"
 ```
@@ -380,7 +380,7 @@ If SUMMARY "Issues Encountered" ≠ "None": yolo → log and continue. Interacti
 
 <step name="update_roadmap">
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap update-plan-progress "${PHASE}"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap update-plan-progress "${PHASE}"
 ```
 Counts PLAN vs SUMMARY files on disk. Updates progress table row with correct count and status (`In Progress` or `Complete` with date).
 </step>
@@ -389,7 +389,7 @@ Counts PLAN vs SUMMARY files on disk. Updates progress table row with correct co
 Task code already committed per-task. Commit plan metadata:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs({phase}-{plan}): complete [plan-name] plan" --files .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/STATE.md .planning/ROADMAP.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs({phase}-{plan}): complete [plan-name] plan" --files .planning/phases/XX-name/{phase}-{plan}-SUMMARY.md .planning/STATE.md .planning/ROADMAP.md
 ```
 </step>
 
@@ -404,7 +404,7 @@ git diff --name-only ${FIRST_TASK}^..HEAD 2>/dev/null
 Update only structural changes: new src/ dir → STRUCTURE.md | deps → STACK.md | file pattern → CONVENTIONS.md | API client → INTEGRATIONS.md | config → STACK.md | renamed → update paths. Skip code-only/bugfix/content changes.
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "" --files .planning/codebase/*.md --amend
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "" --files .planning/codebase/*.md --amend
 ```
 </step>
 
diff --git a/get-shit-done/workflows/insert-phase.md b/get-shit-done/workflows/insert-phase.md
index 51964a021..9d411b537 100644
--- a/get-shit-done/workflows/insert-phase.md
+++ b/get-shit-done/workflows/insert-phase.md
@@ -34,7 +34,7 @@ Validate first argument is an integer.
 Load phase operation context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "${after_phase}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "${after_phase}")
 ```
 
 Check `roadmap_exists` from init JSON. If false:
@@ -48,7 +48,7 @@ Exit.
 **Delegate the phase insertion to gsd-tools:**
 
 ```bash
-RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase insert "${after_phase}" "${description}")
+RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase insert "${after_phase}" "${description}")
 ```
 
 The CLI handles:
diff --git a/get-shit-done/workflows/map-codebase.md b/get-shit-done/workflows/map-codebase.md
index 3de427249..eda2b00c0 100644
--- a/get-shit-done/workflows/map-codebase.md
+++ b/get-shit-done/workflows/map-codebase.md
@@ -26,7 +26,7 @@ Documents are reference material for Claude when planning/executing. Always incl
 Load codebase mapping context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init map-codebase)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init map-codebase)
 ```
 
 Extract from init JSON: `mapper_model`, `commit_docs`, `codebase_dir`, `existing_maps`, `has_maps`, `codebase_dir_exists`.
@@ -262,7 +262,7 @@ Continue to commit_codebase_map.
 Commit the codebase map:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: map existing codebase" --files .planning/codebase/*.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: map existing codebase" --files .planning/codebase/*.md
 ```
 
 Continue to offer_next.
diff --git a/get-shit-done/workflows/new-milestone.md b/get-shit-done/workflows/new-milestone.md
index 688c43258..e8324b865 100644
--- a/get-shit-done/workflows/new-milestone.md
+++ b/get-shit-done/workflows/new-milestone.md
@@ -71,13 +71,13 @@ Keep Accumulated Context section from previous milestone.
 Delete MILESTONE-CONTEXT.md if exists (consumed).
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: start milestone v[X.Y] [Name]" --files .planning/PROJECT.md .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: start milestone v[X.Y] [Name]" --files .planning/PROJECT.md .planning/STATE.md
 ```
 
 ## 7. Load Context and Resolve Models
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init new-milestone)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init new-milestone)
 ```
 
 Extract from init JSON: `researcher_model`, `synthesizer_model`, `roadmapper_model`, `commit_docs`, `research_enabled`, `current_milestone`, `project_exists`, `roadmap_exists`.
@@ -92,10 +92,10 @@ AskUserQuestion: "Research the domain ecosystem for new features before defining
 
 ```bash
 # If "Research first": persist true
-node ~/.claude/get-shit-done/bin/gsd-tools.js config-set workflow.research true
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs config-set workflow.research true
 
 # If "Skip research": persist false
-node ~/.claude/get-shit-done/bin/gsd-tools.js config-set workflow.research false
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs config-set workflow.research false
 ```
 
 **If "Research first":**
@@ -246,7 +246,7 @@ If "adjust": Return to scoping.
 
 **Commit requirements:**
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: define milestone v[X.Y] requirements" --files .planning/REQUIREMENTS.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: define milestone v[X.Y] requirements" --files .planning/REQUIREMENTS.md
 ```
 
 ## 10. Create Roadmap
@@ -321,7 +321,7 @@ Success criteria:
 
 **Commit roadmap** (after approval):
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: create milestone v[X.Y] roadmap ([N] phases)" --files .planning/ROADMAP.md .planning/STATE.md .planning/REQUIREMENTS.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: create milestone v[X.Y] roadmap ([N] phases)" --files .planning/ROADMAP.md .planning/STATE.md .planning/REQUIREMENTS.md
 ```
 
 ## 11. Done
diff --git a/get-shit-done/workflows/new-project.md b/get-shit-done/workflows/new-project.md
index b07e5f0be..868fb7358 100644
--- a/get-shit-done/workflows/new-project.md
+++ b/get-shit-done/workflows/new-project.md
@@ -40,7 +40,7 @@ The document should describe what you want to build.
 **MANDATORY FIRST STEP — Execute these checks before ANY user interaction:**
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init new-project)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init new-project)
 ```
 
 Parse JSON for: `researcher_model`, `synthesizer_model`, `roadmapper_model`, `commit_docs`, `project_exists`, `has_codebase_map`, `planning_exists`, `has_existing_code`, `has_package_file`, `is_brownfield`, `needs_codebase_map`, `has_git`.
@@ -212,7 +212,7 @@ Do not compress. Capture everything gathered.
 
 ```bash
 mkdir -p .planning
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: initialize project" --files .planning/PROJECT.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: initialize project" --files .planning/PROJECT.md
 ```
 
 ## 5. Workflow Preferences
@@ -342,7 +342,7 @@ Create `.planning/config.json` with all settings:
 **Commit config.json:**
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "chore: add project config" --files .planning/config.json
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "chore: add project config" --files .planning/config.json
 ```
 
 **Note:** Run `/gsd:settings` anytime to update these preferences.
@@ -740,7 +740,7 @@ If "adjust": Return to scoping.
 **Commit requirements:**
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: define v1 requirements" --files .planning/REQUIREMENTS.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: define v1 requirements" --files .planning/REQUIREMENTS.md
 ```
 
 ## 8. Create Roadmap
@@ -873,7 +873,7 @@ Use AskUserQuestion:
 **Commit roadmap (after approval or auto mode):**
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs: create roadmap ([N] phases)" --files .planning/ROADMAP.md .planning/STATE.md .planning/REQUIREMENTS.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs: create roadmap ([N] phases)" --files .planning/ROADMAP.md .planning/STATE.md .planning/REQUIREMENTS.md
 ```
 
 ## 9. Done
diff --git a/get-shit-done/workflows/pause-work.md b/get-shit-done/workflows/pause-work.md
index e78280815..dde5b1a76 100644
--- a/get-shit-done/workflows/pause-work.md
+++ b/get-shit-done/workflows/pause-work.md
@@ -86,13 +86,13 @@ Be specific enough for a fresh Claude to understand immediately.
 
 Use `current-timestamp` for last_updated field. You can use init todos (which provides timestamps) or call directly:
 ```bash
-timestamp=$(node ~/.claude/get-shit-done/bin/gsd-tools.js current-timestamp full --raw)
+timestamp=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs current-timestamp full --raw)
 ```
 </step>
 
 <step name="commit">
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "wip: [phase-name] paused at task [X]/[Y]" --files .planning/phases/*/.continue-here.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "wip: [phase-name] paused at task [X]/[Y]" --files .planning/phases/*/.continue-here.md
 ```
 </step>
 
diff --git a/get-shit-done/workflows/plan-milestone-gaps.md b/get-shit-done/workflows/plan-milestone-gaps.md
index f6876e7a8..d1d3a0a1c 100644
--- a/get-shit-done/workflows/plan-milestone-gaps.md
+++ b/get-shit-done/workflows/plan-milestone-gaps.md
@@ -65,7 +65,7 @@ Gap: Flow "View dashboard" broken at data fetch
 Find highest existing phase:
 ```bash
 # Get sorted phase list, extract last one
-PHASES=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phases list)
+PHASES=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phases list)
 HIGHEST=$(echo "$PHASES" | jq -r '.directories[-1]')
 ```
 
@@ -132,7 +132,7 @@ mkdir -p ".planning/phases/{NN}-{name}"
 ## 8. Commit Roadmap Update
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs(roadmap): add gap closure phases {N}-{M}" --files .planning/ROADMAP.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs(roadmap): add gap closure phases {N}-{M}" --files .planning/ROADMAP.md
 ```
 
 ## 9. Offer Next Steps
diff --git a/get-shit-done/workflows/plan-phase.md b/get-shit-done/workflows/plan-phase.md
index 2bedfc20d..987ced402 100644
--- a/get-shit-done/workflows/plan-phase.md
+++ b/get-shit-done/workflows/plan-phase.md
@@ -15,7 +15,7 @@ Read all files referenced by the invoking prompt's execution_context before star
 Load all context in one call (include file contents to avoid redundant reads):
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init plan-phase "$PHASE" --include state,roadmap,requirements,context,research,verification,uat)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init plan-phase "$PHASE" --include state,roadmap,requirements,context,research,verification,uat)
 ```
 
 Parse JSON for: `researcher_model`, `planner_model`, `checker_model`, `research_enabled`, `plan_checker_enabled`, `commit_docs`, `phase_found`, `phase_dir`, `phase_number`, `phase_name`, `phase_slug`, `padded_phase`, `has_research`, `has_context`, `has_plans`, `plan_count`, `planning_exists`, `roadmap_exists`.
@@ -40,7 +40,7 @@ mkdir -p ".planning/phases/${padded_phase}-${phase_slug}"
 ## 3. Validate Phase
 
 ```bash
-PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "${PHASE}")
+PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "${PHASE}")
 ```
 
 **If `found` is false:** Error with available phases. **If `found` is true:** Extract `phase_number`, `phase_name`, `goal` from JSON.
@@ -73,10 +73,10 @@ Display banner:
 ### Spawn gsd-phase-researcher
 
 ```bash
-PHASE_DESC=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "${PHASE}" | jq -r '.section')
+PHASE_DESC=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "${PHASE}" | jq -r '.section')
 # Use requirements_content from INIT (already loaded via --include requirements)
 REQUIREMENTS=$(echo "$INIT" | jq -r '.requirements_content // empty' | grep -A100 "## Requirements" | head -50)
-STATE_SNAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.js state-snapshot)
+STATE_SNAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs state-snapshot)
 # Extract decisions from state-snapshot JSON: jq '.decisions[] | "\(.phase): \(.summary) - \(.rationale)"'
 ```
 
@@ -328,7 +328,7 @@ Check for auto-advance trigger:
 1. Parse `--auto` flag from $ARGUMENTS
 2. Read `workflow.auto_advance` from config:
    ```bash
-   AUTO_CFG=$(node ~/.claude/get-shit-done/bin/gsd-tools.js config get workflow.auto_advance 2>/dev/null || echo "false")
+   AUTO_CFG=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs config get workflow.auto_advance 2>/dev/null || echo "false")
    ```
 
 **If `--auto` flag present OR `AUTO_CFG` is true:**
diff --git a/get-shit-done/workflows/progress.md b/get-shit-done/workflows/progress.md
index c37281a04..8c70ebf42 100644
--- a/get-shit-done/workflows/progress.md
+++ b/get-shit-done/workflows/progress.md
@@ -12,7 +12,7 @@ Read all files referenced by the invoking prompt's execution_context before star
 **Load progress context (with file contents to avoid redundant reads):**
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init progress --include state,roadmap,project,config)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init progress --include state,roadmap,project,config)
 ```
 
 Extract from init JSON: `project_exists`, `roadmap_exists`, `state_exists`, `phases`, `current_phase`, `next_phase`, `milestone_version`, `completed_count`, `phase_count`, `paused_at`.
@@ -54,7 +54,7 @@ No additional file reads needed.
 **Get comprehensive roadmap analysis (replaces manual parsing):**
 
 ```bash
-ROADMAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap analyze)
+ROADMAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap analyze)
 ```
 
 This returns structured JSON with:
@@ -73,7 +73,7 @@ Use this instead of manually reading/parsing ROADMAP.md.
 - Find the 2-3 most recent SUMMARY.md files
 - Use `summary-extract` for efficient parsing:
   ```bash
-  node ~/.claude/get-shit-done/bin/gsd-tools.js summary-extract <path> --fields one_liner
+  node ~/.claude/get-shit-done/bin/gsd-tools.cjs summary-extract <path> --fields one_liner
   ```
 - This shows "what we've been working on"
   </step>
@@ -93,7 +93,7 @@ Use this instead of manually reading/parsing ROADMAP.md.
 
 ```bash
 # Get formatted progress bar
-PROGRESS_BAR=$(node ~/.claude/get-shit-done/bin/gsd-tools.js progress bar --raw)
+PROGRESS_BAR=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs progress bar --raw)
 ```
 
 Present:
diff --git a/get-shit-done/workflows/quick.md b/get-shit-done/workflows/quick.md
index 14c859ae3..bb463cd15 100644
--- a/get-shit-done/workflows/quick.md
+++ b/get-shit-done/workflows/quick.md
@@ -28,7 +28,7 @@ If empty, re-prompt: "Please provide a task description."
 **Step 2: Initialize**
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init quick "$DESCRIPTION")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init quick "$DESCRIPTION")
 ```
 
 Parse JSON for: `planner_model`, `executor_model`, `commit_docs`, `next_num`, `slug`, `date`, `timestamp`, `quick_dir`, `task_dir`, `roadmap_exists`, `planning_exists`.
@@ -191,7 +191,7 @@ Use Edit tool to make these changes atomically
 Stage and commit quick task artifacts:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "docs(quick-${next_num}): ${DESCRIPTION}" --files ${QUICK_DIR}/${next_num}-PLAN.md ${QUICK_DIR}/${next_num}-SUMMARY.md .planning/STATE.md
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "docs(quick-${next_num}): ${DESCRIPTION}" --files ${QUICK_DIR}/${next_num}-PLAN.md ${QUICK_DIR}/${next_num}-SUMMARY.md .planning/STATE.md
 ```
 
 Get final commit hash:
diff --git a/get-shit-done/workflows/remove-phase.md b/get-shit-done/workflows/remove-phase.md
index 1fab5231a..0b15f9cfd 100644
--- a/get-shit-done/workflows/remove-phase.md
+++ b/get-shit-done/workflows/remove-phase.md
@@ -29,7 +29,7 @@ Exit.
 Load phase operation context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "${target}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "${target}")
 ```
 
 Extract: `phase_found`, `phase_dir`, `phase_number`, `commit_docs`, `roadmap_exists`.
@@ -79,13 +79,13 @@ Wait for confirmation.
 **Delegate the entire removal operation to gsd-tools:**
 
 ```bash
-RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase remove "${target}")
+RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase remove "${target}")
 ```
 
 If the phase has executed plans (SUMMARY.md files), gsd-tools will error. Use `--force` only if the user confirms:
 
 ```bash
-RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase remove "${target}" --force)
+RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase remove "${target}" --force)
 ```
 
 The CLI handles:
@@ -102,7 +102,7 @@ Extract from result: `removed`, `directory_deleted`, `renamed_directories`, `ren
 Stage and commit the removal:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "chore: remove phase {target} ({original-phase-name})" --files .planning/
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "chore: remove phase {target} ({original-phase-name})" --files .planning/
 ```
 
 The commit message preserves the historical record of what was removed.
diff --git a/get-shit-done/workflows/research-phase.md b/get-shit-done/workflows/research-phase.md
index 003f26c32..771b0e44d 100644
--- a/get-shit-done/workflows/research-phase.md
+++ b/get-shit-done/workflows/research-phase.md
@@ -18,7 +18,7 @@ Resolve model for:
 @~/.claude/get-shit-done/references/phase-argument-parsing.md
 
 ```bash
-PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "${PHASE}")
+PHASE_INFO=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "${PHASE}")
 ```
 
 If `found` is false: Error and exit.
@@ -39,7 +39,7 @@ echo "$PHASE_INFO" | jq -r '.section'
 cat .planning/REQUIREMENTS.md 2>/dev/null
 cat .planning/phases/${PHASE}-*/*-CONTEXT.md 2>/dev/null
 # Decisions from state-snapshot (structured JSON)
-node ~/.claude/get-shit-done/bin/gsd-tools.js state-snapshot | jq '.decisions'
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs state-snapshot | jq '.decisions'
 ```
 
 ## Step 4: Spawn Researcher
diff --git a/get-shit-done/workflows/resume-project.md b/get-shit-done/workflows/resume-project.md
index 7d19e72fe..b3de0fc39 100644
--- a/get-shit-done/workflows/resume-project.md
+++ b/get-shit-done/workflows/resume-project.md
@@ -20,7 +20,7 @@ Instantly restore full project context so "Where were we?" has an immediate, com
 Load all context in one call:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init resume)
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init resume)
 ```
 
 Parse JSON for: `state_exists`, `roadmap_exists`, `project_exists`, `planning_exists`, `has_interrupted_agent`, `interrupted_agent_id`, `commit_docs`.
diff --git a/get-shit-done/workflows/set-profile.md b/get-shit-done/workflows/set-profile.md
index 463044d23..a0457075c 100644
--- a/get-shit-done/workflows/set-profile.md
+++ b/get-shit-done/workflows/set-profile.md
@@ -23,8 +23,8 @@ if $ARGUMENTS.profile not in ["quality", "balanced", "budget"]:
 Ensure config exists and load current state:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js config-ensure-section
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js state load)
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs config-ensure-section
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs state load)
 ```
 
 This creates `.planning/config.json` with defaults if missing and loads current config.
@@ -51,7 +51,7 @@ Display confirmation with model table for selected profile:
 
 Agents will now use:
 
-[Show table from MODEL_PROFILES in gsd-tools.js for selected profile]
+[Show table from MODEL_PROFILES in gsd-tools.cjs for selected profile]
 
 Example:
 | Agent | Model |
diff --git a/get-shit-done/workflows/settings.md b/get-shit-done/workflows/settings.md
index 2758cb589..179bbb6a6 100644
--- a/get-shit-done/workflows/settings.md
+++ b/get-shit-done/workflows/settings.md
@@ -12,8 +12,8 @@ Read all files referenced by the invoking prompt's execution_context before star
 Ensure config exists and load current state:
 
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js config-ensure-section
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js state load)
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs config-ensure-section
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs state load)
 ```
 
 Creates `.planning/config.json` with defaults if missing and loads current config values.
diff --git a/get-shit-done/workflows/transition.md b/get-shit-done/workflows/transition.md
index eec8132a7..9d7b6a205 100644
--- a/get-shit-done/workflows/transition.md
+++ b/get-shit-done/workflows/transition.md
@@ -123,7 +123,7 @@ If found, delete them — phase is complete, handoffs are stale.
 **Delegate ROADMAP.md and STATE.md updates to gsd-tools:**
 
 ```bash
-TRANSITION=$(node ~/.claude/get-shit-done/bin/gsd-tools.js phase complete "${current_phase}")
+TRANSITION=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs phase complete "${current_phase}")
 ```
 
 The CLI handles:
@@ -238,7 +238,7 @@ After (Phase 2 shipped JWT auth, discovered rate limiting needed):
 Verify the updates are correct by reading STATE.md. If the progress bar needs updating, use:
 
 ```bash
-PROGRESS=$(node ~/.claude/get-shit-done/bin/gsd-tools.js progress bar --raw)
+PROGRESS=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs progress bar --raw)
 ```
 
 Update the progress bar line in STATE.md with the result.
@@ -347,7 +347,7 @@ The `next_phase` and `next_phase_name` fields give you the next phase details.
 
 If you need additional context, use:
 ```bash
-ROADMAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap analyze)
+ROADMAP=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap analyze)
 ```
 
 This returns all phases with goals, disk status, and completion info.
diff --git a/get-shit-done/workflows/verify-phase.md b/get-shit-done/workflows/verify-phase.md
index 59a018b3b..dc126500c 100644
--- a/get-shit-done/workflows/verify-phase.md
+++ b/get-shit-done/workflows/verify-phase.md
@@ -28,14 +28,14 @@ Then verify each level against the actual codebase.
 Load phase operation context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init phase-op "${PHASE_ARG}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init phase-op "${PHASE_ARG}")
 ```
 
 Extract from init JSON: `phase_dir`, `phase_number`, `phase_name`, `has_plans`, `plan_count`.
 
 Then load phase details and list plans/summaries:
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "${phase_number}"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "${phase_number}"
 grep -E "^| ${phase_number}" .planning/REQUIREMENTS.md 2>/dev/null
 ls "$phase_dir"/*-SUMMARY.md "$phase_dir"/*-PLAN.md 2>/dev/null
 ```
@@ -50,7 +50,7 @@ Use gsd-tools to extract must_haves from each PLAN:
 
 ```bash
 for plan in "$PHASE_DIR"/*-PLAN.md; do
-  MUST_HAVES=$(node ~/.claude/get-shit-done/bin/gsd-tools.js frontmatter get "$plan" --field must_haves)
+  MUST_HAVES=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs frontmatter get "$plan" --field must_haves)
   echo "=== $plan ===" && echo "$MUST_HAVES"
 done
 ```
@@ -64,7 +64,7 @@ Aggregate all must_haves across plans for phase-level verification.
 If no must_haves in frontmatter (MUST_HAVES returns error or empty), check for Success Criteria:
 
 ```bash
-PHASE_DATA=$(node ~/.claude/get-shit-done/bin/gsd-tools.js roadmap get-phase "${phase_number}" --raw)
+PHASE_DATA=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs roadmap get-phase "${phase_number}" --raw)
 ```
 
 Parse the `success_criteria` array from the JSON output. If non-empty:
@@ -100,7 +100,7 @@ Use gsd-tools for artifact verification against must_haves in each PLAN:
 
 ```bash
 for plan in "$PHASE_DIR"/*-PLAN.md; do
-  ARTIFACT_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify artifacts "$plan")
+  ARTIFACT_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify artifacts "$plan")
   echo "=== $plan ===" && echo "$ARTIFACT_RESULT"
 done
 ```
@@ -132,7 +132,7 @@ Use gsd-tools for key link verification against must_haves in each PLAN:
 
 ```bash
 for plan in "$PHASE_DIR"/*-PLAN.md; do
-  LINKS_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js verify key-links "$plan")
+  LINKS_RESULT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs verify key-links "$plan")
   echo "=== $plan ===" && echo "$LINKS_RESULT"
 done
 ```
diff --git a/get-shit-done/workflows/verify-work.md b/get-shit-done/workflows/verify-work.md
index 8db33d739..b9beb7130 100644
--- a/get-shit-done/workflows/verify-work.md
+++ b/get-shit-done/workflows/verify-work.md
@@ -24,7 +24,7 @@ No Pass/Fail buttons. No severity questions. Just: "Here's what should happen. D
 If $ARGUMENTS contains a phase number, load context:
 
 ```bash
-INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.js init verify-work "${PHASE_ARG}")
+INIT=$(node ~/.claude/get-shit-done/bin/gsd-tools.cjs init verify-work "${PHASE_ARG}")
 ```
 
 Parse JSON for: `planner_model`, `checker_model`, `commit_docs`, `phase_found`, `phase_dir`, `phase_number`, `phase_name`, `has_verification`.
@@ -292,7 +292,7 @@ Clear Current Test section:
 
 Commit the UAT file:
 ```bash
-node ~/.claude/get-shit-done/bin/gsd-tools.js commit "test({phase_num}): complete UAT - {passed} passed, {issues} issues" --files ".planning/phases/XX-name/{phase_num}-UAT.md"
+node ~/.claude/get-shit-done/bin/gsd-tools.cjs commit "test({phase_num}): complete UAT - {passed} passed, {issues} issues" --files ".planning/phases/XX-name/{phase_num}-UAT.md"
 ```
 
 Present summary: