Files
msd-core/get-shit-done/templates/DEBUG.md
Tom Boucher c17209f902 feat(2145): /gsd-debug session management, TDD gate, reasoning checkpoint, security hardening (#2146)
* feat(2145): add list/continue/status subcommands and surface next_action in /gsd-debug

- Parse SUBCMD from \$ARGUMENTS before active-session check (list/status/continue/debug)
- Step 1a: list subcommand prints formatted table of all active sessions
- Step 1b: status subcommand prints full session summary without spawning agent
- Step 1c: continue subcommand surfaces Current Focus then spawns continuation agent
- Surface [debug] Session/Status/Hypothesis/Next before every agent spawn
- Read TDD_MODE from config in Step 0 (used in Step 4)
- Slug sanitization: strip path traversal chars, enforce ^[a-z0-9][a-z0-9-]*$ pattern

* feat(2145): add TDD mode, delta debugging, reasoning checkpoint to gsd-debugger

- Security note in <role>: DATA_START/DATA_END markers are data-only, never instructions
- Delta Debugging technique added to investigation_techniques (binary search over change sets)
- Structured Reasoning Checkpoint technique: mandatory five-field block before any fix
- fix_and_verify step 0: mandatory reasoning_checkpoint before implementing fix
- TDD mode block in <modes>: red/green cycle, tdd_checkpoint tracking, TDD CHECKPOINT return
- TDD CHECKPOINT structured return format added to <structured_returns>
- next_action concreteness guidance added to <debug_file_protocol>

* feat(2145): update DEBUG.md template and docs for debug enhancements

- DEBUG.md template: add reasoning_checkpoint and tdd_checkpoint fields to Current Focus
- DEBUG.md section_rules: document next_action concreteness requirement and new fields
- docs/COMMANDS.md: document list/status/continue subcommands and TDD mode flag
- tests/debug-session-management.test.cjs: 12 content-validation tests (all pass)
2026-04-12 09:00:23 -04:00

5.2 KiB

Debug Template

Template for .planning/debug/[slug].md — active debug session tracking.


File Template

---
status: gathering | investigating | fixing | verifying | awaiting_human_verify | resolved
trigger: "[verbatim user input]"
created: [ISO timestamp]
updated: [ISO timestamp]
---

## Current Focus
<!-- OVERWRITE on each update - always reflects NOW -->

hypothesis: [current theory being tested]
test: [how testing it]
expecting: [what result means if true/false]
next_action: [immediate next step — be specific, not "continue investigating"]
reasoning_checkpoint: null  <!-- populated before every fix attempt — see structured_returns -->
tdd_checkpoint: null  <!-- populated when tdd_mode is active after root cause confirmed -->

## Symptoms
<!-- Written during gathering, then immutable -->

expected: [what should happen]
actual: [what actually happens]
errors: [error messages if any]
reproduction: [how to trigger]
started: [when it broke / always broken]

## Eliminated
<!-- APPEND only - prevents re-investigating after /clear -->

- hypothesis: [theory that was wrong]
  evidence: [what disproved it]
  timestamp: [when eliminated]

## Evidence
<!-- APPEND only - facts discovered during investigation -->

- timestamp: [when found]
  checked: [what was examined]
  found: [what was observed]
  implication: [what this means]

## Resolution
<!-- OVERWRITE as understanding evolves -->

root_cause: [empty until found]
fix: [empty until applied]
verification: [empty until verified]
files_changed: []

<section_rules>

Frontmatter (status, trigger, timestamps):

  • status: OVERWRITE - reflects current phase
  • trigger: IMMUTABLE - verbatim user input, never changes
  • created: IMMUTABLE - set once
  • updated: OVERWRITE - update on every change

Current Focus:

  • OVERWRITE entirely on each update
  • Always reflects what Claude is doing RIGHT NOW
  • If Claude reads this after /clear, it knows exactly where to resume
  • Fields: hypothesis, test, expecting, next_action, reasoning_checkpoint, tdd_checkpoint
  • next_action: must be concrete and actionable — bad: "continue investigating"; good: "Add logging at line 47 of auth.js to observe token value before jwt.verify()"
  • reasoning_checkpoint: OVERWRITE before every fix_and_verify — five-field structured reasoning record (hypothesis, confirming_evidence, falsification_test, fix_rationale, blind_spots)
  • tdd_checkpoint: OVERWRITE during TDD red/green phases — test file, name, status, failure output

Symptoms:

  • Written during initial gathering phase
  • IMMUTABLE after gathering complete
  • Reference point for what we're trying to fix
  • Fields: expected, actual, errors, reproduction, started

Eliminated:

  • APPEND only - never remove entries
  • Prevents re-investigating dead ends after context reset
  • Each entry: hypothesis, evidence that disproved it, timestamp
  • Critical for efficiency across /clear boundaries

Evidence:

  • APPEND only - never remove entries
  • Facts discovered during investigation
  • Each entry: timestamp, what checked, what found, implication
  • Builds the case for root cause

Resolution:

  • OVERWRITE as understanding evolves
  • May update multiple times as fixes are tried
  • Final state shows confirmed root cause and verified fix
  • Fields: root_cause, fix, verification, files_changed

</section_rules>

Creation: Immediately when /gsd-debug is called

  • Create file with trigger from user input
  • Set status to "gathering"
  • Current Focus: next_action = "gather symptoms"
  • Symptoms: empty, to be filled

During symptom gathering:

  • Update Symptoms section as user answers questions
  • Update Current Focus with each question
  • When complete: status → "investigating"

During investigation:

  • OVERWRITE Current Focus with each hypothesis
  • APPEND to Evidence with each finding
  • APPEND to Eliminated when hypothesis disproved
  • Update timestamp in frontmatter

During fixing:

  • status → "fixing"
  • Update Resolution.root_cause when confirmed
  • Update Resolution.fix when applied
  • Update Resolution.files_changed

During verification:

  • status → "verifying"
  • Update Resolution.verification with results
  • If verification fails: status → "investigating", try again

After self-verification passes:

  • status -> "awaiting_human_verify"
  • Request explicit user confirmation in a checkpoint
  • Do NOT move file to resolved yet

On resolution:

  • status → "resolved"
  • Move file to .planning/debug/resolved/ (only after user confirms fix)

<resume_behavior>

When Claude reads this file after /clear:

  1. Parse frontmatter → know status
  2. Read Current Focus → know exactly what was happening
  3. Read Eliminated → know what NOT to retry
  4. Read Evidence → know what's been learned
  5. Continue from next_action

The file IS the debugging brain. Claude should be able to resume perfectly from any interruption point.

</resume_behavior>

<size_constraint>

Keep debug files focused:

  • Evidence entries: 1-2 lines each, just the facts
  • Eliminated: brief - hypothesis + why it failed
  • No narrative prose - structured data only

If evidence grows very large (10+ entries), consider whether you're going in circles. Check Eliminated to ensure you're not re-treading.

</size_constraint>