gsd-start
Initialize a new project or milestone — context gathering → research → requirements → roadmap
Best use case
gsd-start is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Initialize a new project or milestone — context gathering → research → requirements → roadmap
Teams using gsd-start should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/gsd-start/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How gsd-start Compares
| Feature / Agent | gsd-start | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Initialize a new project or milestone — context gathering → research → requirements → roadmap
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
<codex_skill_adapter>
## A. Skill Invocation
- Invoked by mentioning `$gsd-SLUG`.
- Treat all user text after `$gsd-SLUG` as `{{GSD_ARGS}}`.
## B. AskUserQuestion → request_user_input Mapping
- `header` → `header`, `question` → `question`
- Options `"Label" — desc` → `{label: "Label", description: "desc"}`
- Generate `id` from header: lowercase, replace spaces with underscores
- Batched: `AskUserQuestion([q1, q2])` → single `request_user_input` with multiple entries
- Execute mode fallback: plain-text numbered list, pick reasonable default
## C. Task() → spawn_agent Mapping
- `Task(subagent_type="X", prompt="Y")` → `spawn_agent(agent_type="X", message="Y")`
- `Task(model="...")` → omit
- Parallel fan-out: spawn multiple → collect IDs → `wait(ids)` → `close_agent(id)`
- Look for `CHECKPOINT`, `PLAN COMPLETE`, `SUMMARY` markers in output
</codex_skill_adapter>
<objective>
Initialize a new project or milestone — context gathering → research → requirements → roadmap.
**Default:** questioning → research (optional) → requirements → roadmap.
**`--milestone "Name"`:** New milestone on existing project.
**`--map [area]`:** Brownfield codebase mapping before planning.
**`--auto`:** Skip interactive questions.
After: run `$gsd-plan 1` to begin execution.
</objective>
<execution_context>
@.agents/workflows/new-project.md
@.agents/workflows/new-milestone.md
@.agents/workflows/map-codebase.md
@.agents/references/questioning.md
@.agents/templates/project.md
@.agents/templates/requirements.md
</execution_context>
<context>
{{GSD_ARGS}}
Routing:
- `--milestone` → new-milestone flow
- `--map` → map-codebase workflow
- otherwise → new-project flow
</context>
<process>
If `--milestone` flag present: update ROADMAP.md with new milestone, update STATE.md.
If `--map` flag present: run brownfield codebase mapping before project planning.
Otherwise: execute new-project workflow end-to-end.
</process>Related Skills
workflow-core
Canonical repository workflow contract for all runtimes.
verify-phase
Verify delivery quality, evidence, and done criteria.
review
Review changes for correctness, risk, and architectural adherence.
quick-task
Lightweight path for trivial or tightly bounded work.
plan-phase
Produce an executable plan for a bounded slice or phase.
execute-phase
Execute a plan with TDD-first delivery and proportional validation.
docs-update
Update durable documentation after validated change.
gsd-verify
Validate built features through UAT — diagnoses gaps and creates fix plans
gsd-update
Update GSD to latest version with changelog display
gsd-ship
Create PR, run review, and prepare for merge after verification passes
gsd-settings
Configure GSD workflow toggles, model profile, and cost controls
gsd-session
Manage work sessions — resume, pause, check progress, or get next step