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Implement spec

Skill kunalsuri/ai-fication-kit/.claude/skills/implement-spec

AI-Fication Kit: A Simple & Elegant Way for Making any Codebase AI-native through Scaffolded, Human-verified Context and Development Loop.

Install
npx -y skills add kunalsuri/ai-fication-kit --skill implement-spec

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One thing to look at

  • 2 stars2 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

Implement a spec from ai/lab/specs/ exactly as written — zero design decisions, stop-and-report on any spec-vs-reality conflict, tests are the definition of done. Built for lighter implementation models.

SKILL.md

4.6 KB, as published. Nobody here has run it

<!-- Copyright (c) 2026 Kunal Suri (CEA LIST). All rights reserved. -->

Implement the spec at: $ARGUMENTS (If no path was given, ask for one and stop. Implement ONLY this spec.)

You are the implementer, not the designer. Every design decision has already been made in the spec. Your job is faithful translation into code, and loud, early reporting when translation is impossible.

Protocol (follow in order, no skipping)

0. Load context — exactly this, no more

  1. Read the ENTIRE spec file, top to bottom, before writing any code.
  2. Read any rationale/lessons-learnt doc the spec's preamble names — once.
  3. Read ai/guide/MODULE_MAP.md (Stability column) and ai/guide/CONVENTIONS.md.
  4. Do NOT crawl the tree. Open other files only when the spec's touch list or your current step requires them.

1. Pre-flight (all must pass before you write code)

  • npm test passes on the clean checkout (record the pass count).
  • node install.mjs verify . --strict passes.
  • Every file in the spec's touch list marked "modify" exists; confirm none is frozen or ? in MODULE_MAP.md. If one is → STOP AND REPORT.
  • Restate to yourself the spec's hard-constraints table (if present). Those constraints outrank your habits and your training priors.

2. THE PRIME RULE — stop-and-report, never improvise

If at ANY point the spec conflicts with what you find in the code, the docs, or a failing behaviour — the function signature differs, a file isn't where the spec says, an example contradicts a rule, a specified test cannot pass as written — you MUST stop and report:

  • the spec section, the file:line evidence, and the smallest question whose answer unblocks you. Do NOT pick the "obvious" interpretation. Do NOT patch around it. Do NOT widen scope to fix it. A wrong guess here costs more than the pause. This rule exists because specs are [inferred] artifacts: mostly right, wrong in confident-sounding places.

3. Implement

  • Follow the spec's own ordering and any code skeleton it provides — structure, export names, and file layout are contractual, not suggestions.
  • Touch ONLY files in the spec's touch list. No new dependencies unless the spec adds them. No drive-by refactors, renames, or "improvements".
  • License header on every new file, copied from a neighbouring file.
  • Match surrounding code style (imports, naming, error handling) over generic best practice.

4. Verify — the tests are the definition of done

  • Implement the spec's ENTIRE test plan (every numbered test), in the harness style the spec names. A test you cannot implement as specified is a §2 stop-and-report, not a skip.
  • npm test green (old count + new tests), node install.mjs verify . --strict clean. Paste real output; never summarize a test run you didn't execute.
  • If the spec has acceptance criteria, walk the list and mark each one explicitly: met / not met / blocked-on-question.

5. Review gate (the engineering loop's Review step — not optional)

  • Request /review-change on the completed diff in a FRESH context (a session that did not write the code), per ai/lab/specs/SPEC_engineering-loop.md. You implement; you do not approve your own work.
  • The review lands in ai/lab/reviews/ and its verdict is input to the human's merge decision — implementation "done" without a review is not loop-complete.

6. Knowledge updates (part of the change, not an afterthought)

  • Execute the spec's "knowledge update on completion" checklist. All new/changed rows and entries are tagged [inferred].
  • NEVER flip [inferred] → [verified], and never edit an existing [verified] signature. That is the human's move alone.
  • Append the WORKLOG entry linking spec, review, commits, and test evidence (verify scans these links — broken ones fail --strict).
  • If the spec implements a ai/lab/ROADMAP.md Planned feature, move its row from Planned to Shipped, cross-linking the spec, the WORKLOG row, and the PR.

7. Final report (in this order)

  1. Acceptance-criteria scorecard.
  2. Verbatim tail of npm test and verify --strict output.
  3. Deviations from the spec: list each one with its §2 report — the expected count is ZERO; anything else should already have stopped you.
  4. Files changed vs. the spec's touch list (must match exactly).
  5. Review status: link to the /review-change request/result for the human's merge decision.

Keep looking

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