diff --git a/commands/gsd/new-project.md b/commands/gsd/new-project.md
index 08fb3ac4b..508b08dd9 100644
--- a/commands/gsd/new-project.md
+++ b/commands/gsd/new-project.md
@@ -1,6 +1,7 @@
 ---
 name: gsd:new-project
 description: Initialize a new project with deep context gathering and PROJECT.md
+argument-hint: "[--auto]"
 allowed-tools:
   - Read
   - Bash
@@ -8,6 +9,11 @@ allowed-tools:
   - Task
   - AskUserQuestion
 ---
+<context>
+**Flags:**
+- `--auto` — Automatic mode. After config questions, runs research → requirements → roadmap without further interaction. Expects idea document via @ reference.
+</context>
+
 <objective>
 Initialize a new project through unified flow: questioning → research (optional) → requirements → roadmap.
 
diff --git a/get-shit-done/workflows/new-project.md b/get-shit-done/workflows/new-project.md
index 2f11dd7b8..0d05c0c2c 100644
--- a/get-shit-done/workflows/new-project.md
+++ b/get-shit-done/workflows/new-project.md
@@ -6,6 +6,33 @@ Initialize a new project through unified flow: questioning, research (optional),
 Read all files referenced by the invoking prompt's execution_context before starting.
 </required_reading>
 
+<auto_mode>
+## Auto Mode Detection
+
+Check if `--auto` flag is present in $ARGUMENTS.
+
+**If auto mode:**
+- Skip brownfield mapping offer (assume greenfield)
+- Skip deep questioning (extract context from provided document)
+- Config questions still required (Step 5)
+- After config: run Steps 6-9 automatically with smart defaults:
+  - Research: Always yes
+  - Requirements: Include all table stakes + features from provided document
+  - Requirements approval: Auto-approve
+  - Roadmap approval: Auto-approve
+
+**Document requirement:**
+Auto mode requires an idea document via @ reference (e.g., `/gsd:new-project --auto @prd.md`). If no document provided, error:
+
+```
+Error: --auto requires an idea document via @ reference.
+
+Usage: /gsd:new-project --auto @your-idea.md
+
+The document should describe what you want to build.
+```
+</auto_mode>
+
 <process>
 
 ## 1. Setup
@@ -27,6 +54,8 @@ git init
 
 ## 2. Brownfield Offer
 
+**If auto mode:** Skip to Step 4 (assume greenfield, synthesize PROJECT.md from provided document).
+
 **If `needs_codebase_map` is true** (from init — existing code detected but no codebase map):
 
 Use AskUserQuestion:
@@ -46,6 +75,8 @@ Exit command.
 
 ## 3. Deep Questioning
 
+**If auto mode:** Skip. Extract project context from provided document instead and proceed to Step 4.
+
 **Display stage banner:**
 
 ```
@@ -100,6 +131,8 @@ Loop until "Create PROJECT.md" selected.
 
 ## 4. Write PROJECT.md
 
+**If auto mode:** Synthesize from provided document. No "Ready?" gate was shown — proceed directly to commit.
+
 Synthesize all context into `.planning/PROJECT.md` using the template from `templates/project.md`.
 
 **For greenfield projects:**
@@ -320,6 +353,8 @@ Use models from init: `researcher_model`, `synthesizer_model`, `roadmapper_model
 
 ## 6. Research Decision
 
+**If auto mode:** Default to "Research first" without asking.
+
 Use AskUserQuestion:
 - header: "Research"
 - question: "Research the domain ecosystem before defining requirements?"
@@ -581,7 +616,16 @@ Read PROJECT.md and extract:
 
 **If research exists:** Read research/FEATURES.md and extract feature categories.
 
-**Present features by category:**
+**If auto mode:**
+- Auto-include all table stakes features (users expect these)
+- Include features explicitly mentioned in provided document
+- Auto-defer differentiators not mentioned in document
+- Skip per-category AskUserQuestion loops
+- Skip "Any additions?" question
+- Skip requirements approval gate
+- Generate REQUIREMENTS.md and commit directly
+
+**Present features by category (interactive mode only):**
 
 ```
 Here are the features for [domain]:
@@ -668,7 +712,7 @@ Reject vague requirements. Push for specificity:
 - "Handle authentication" → "User can log in with email/password and stay logged in across sessions"
 - "Support sharing" → "User can share post via link that opens in recipient's browser"
 
-**Present full requirements list:**
+**Present full requirements list (interactive mode only):**
 
 Show every requirement (not counts) for user confirmation:
 
@@ -791,7 +835,9 @@ Success criteria:
 ---
 ```
 
-**CRITICAL: Ask for approval before committing:**
+**If auto mode:** Skip approval gate — auto-approve and commit directly.
+
+**CRITICAL: Ask for approval before committing (interactive mode only):**
 
 Use AskUserQuestion:
 - header: "Roadmap"
@@ -824,7 +870,7 @@ Use AskUserQuestion:
 
 **If "Review full file":** Display raw `cat .planning/ROADMAP.md`, then re-ask.
 
-**Commit roadmap (after approval):**
+**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