sdd-yolo

Installation
SKILL.md

SDD: YOLO Full Pipeline

You are running the full SDD workflow end-to-end with minimal interruptions. The pipeline is: analyse → plan → implement → review → archive.

There is exactly one confirmation gate: after the spec and plan are produced, before implementation begins. Everything else runs automatically.

Required Inputs

Before starting, collect these inputs. If any are missing, ask for them now — do not proceed without them.

Input Description Example
feature_description The feature to build end-to-end "Add JWT authentication with refresh token support"

Steps

Step 0: Validate Inputs (ALWAYS DO THIS FIRST)

Check the conversation for feature_description and for docs/project.md.

  • If docs/project.md does not exist → stop and tell the user to run /sdd-init first.
  • If feature_description is present → proceed to Phase 1.
  • If feature_description is missing → ask: "What feature would you like to build?" Do NOT proceed until the user provides it.

Phase 1 — Analyse

Follow the full sdd-feature process:

  1. Read docs/project.md.
  2. Analyse the request: feature_description (collected in Step 0).
  3. Ask clarifying questions only for blockers — information without which you cannot write a correct spec. Skip questions about preferences or nice-to-haves. Maximum 3 questions.
  4. Write feature.md in the project root using the standard structure:
# Feature: <Feature Name>

## Summary
## User Stories
## Functional Requirements
## Acceptance Criteria
- [ ] AC-01: ...
## Technical Scope
## Non-Functional Requirements
## Out of Scope
## Open Questions
  1. Print a compact summary of the spec (3–5 bullet points, not the full file).

Phase 2 — Plan

Follow the full sdd-plan process immediately after Phase 1:

  1. Read feature.md and docs/project.md.
  2. Write plan.md in the project root with ordered implementation steps, specific file paths, checklist items, and an AC-to-test mapping table.
  3. Print a compact summary of the plan (step names only, not full detail).

Confirmation Gate

Present the following prompt and wait for the user's response before continuing:

## Ready to implement

Spec: feature.md ✓
Plan: plan.md ✓

[Compact spec summary — 3–5 bullets]
[Plan steps — numbered list of step names]

Type PROCEED to start implementation, or describe any changes you want first.
  • If the user types PROCEED (or equivalent confirmation): continue to Phase 3.
  • If the user requests changes: apply them to feature.md and/or plan.md, show what changed, then re-present the gate.
  • If the user aborts: stop and leave feature.md and plan.md in place for manual continuation.

Phase 3 — Implement

Follow the full sdd-implement process:

  1. Read plan.md, feature.md, and docs/project.md.
  2. Execute each step in plan.md in order.
  3. Compile and run tests after each layer. Fix failures before moving on — never carry failures forward.
  4. Do not introduce new dependencies without flagging them to the user.
  5. After all steps, run the full test suite and verify every AC against a passing test.
  6. Print the completion summary (files created/modified, AC pass/fail table).

If any AC is failing after implementation, stop here. Report what failed and ask the user to fix it before continuing.


Phase 4 — Review

Follow the full sdd-review process immediately after Phase 3:

  1. Run git diff main...HEAD --name-only to determine changed files.
  2. Review across all 8 dimensions (AC coverage, language best practices, framework conventions, security, duplication, design, performance, test quality, observability).
  3. Produce the full structured review report.

Phase 5 — Archive or Stop

Evaluate the review verdict:

If verdict is ✅ Ready to merge OR 🟡 Merge after minor fixes

Proceed automatically to archive:

  1. Follow the full sdd-archive process.
  2. Update docs/project.md (features list, architecture decisions, API surface, env config).
  3. Show the proposed project.md changes and ask for confirmation before writing.
  4. Move feature.md and plan.md to docs/specs-archive/<feature-name>/.
  5. Create docs/specs-archive/<feature-name>/README.md.

Then print the final pipeline summary:

## YOLO Pipeline Complete ✓

Feature: <Feature Name>
Archived to: docs/specs-archive/<feature-name>/

Phase results:
  Analyse     ✓
  Plan        ✓
  Implement   ✓  (N files created, M files modified)
  Review      ✓  (<verdict>)
  Archive     ✓

Next: commit docs/specs-archive/<feature-name>/ and docs/project.md to version control.

If verdict is 🟠 Requires fixes and re-review OR 🔴 Do not merge

Stop. Do not archive.

Print:

## YOLO Pipeline Stopped — Review issues require attention

Feature: <Feature Name>

Phase results:
  Analyse     ✓
  Plan        ✓
  Implement   ✓
  Review      ✗  (<verdict>)
  Archive     — (skipped)

Critical/Major findings must be resolved before archiving.
Fix the issues above, then run /sdd-review to re-review, and /sdd-archive when clean.

Leave feature.md and plan.md in the project root so the user can continue manually.

Related skills
Installs
13
GitHub Stars
22
First Seen
Apr 19, 2026