implement-specs

A skill that implements a previously approved technical specification one planned step at a time. It keeps the specification updated when the code needs to differ from the original plan.

In plain words
What is it for?
Use it when a specs/<id>/TECH.md already exists and the user asks to implement it or continue its in-progress implementation.
Why use it?
It gives implementation a clear sequence and prevents the written plan from becoming inaccurate as the code changes.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/qinghaoliqaq/autocoder/implement_specs
Any agent
npx skills add qinghaoliqaq/AutoCoder --skill implement_specs
Clone the repo
git clone --depth 1 https://github.com/qinghaoliqaq/AutoCoder

Made for: Claude Code, Codex.

Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,129 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00059 $0.01129
Opus 5 $0.00030 $0.00564
Sonnet 5 $0.00012 $0.00226
Haiku 4.5 $0.00006 $0.00113

Measured 3d ago against content hash a474f584b74e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

implement-specs scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

src-tauri/src/bundled_skills/implement_specs/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement Specs

This skill turns a specs/<id>/TECH.md into committed code. Its core discipline:

The spec and the code update in the same PR. A drifted spec is worse than no spec — it lies. Treat drift as a bug, not a normal outcome.

When To Use

Use this skill when:

  • A specs/<id>/TECH.md already exists and is approved (either by the user or by a previous write-tech-spec run)
  • The user says "implement spec X" or "follow the plan in specs/Y/"
  • You're picking up an in-progress spec implementation (PROJECT_LOG.md exists)

Do not start implementing without a spec — drop back to write-tech-spec first, or implement directly if the work is too small to spec.

Operating Loop

For each numbered step in the spec's Implementation Plan:

  1. Re-read the spec. It may have been updated since you last looked.
  2. Read the cited current-state code. TECH.md cites file:line anchors; verify they still point where the spec claims. If the code has moved, update the spec citations first, then continue.
  3. Implement the step. Stay scoped to what this step describes — don't drag in unrelated cleanup, refactors, or "while I'm here" improvements. Those belong in their own PRs.
  4. Run the testing scenarios the spec lists for this step. If the spec doesn't list one, add the smallest test that exercises the new behavior end-to-end.
  5. Update the spec if reality diverged. Common cases:
    • You discovered the proposed approach doesn't work → update Proposed Changes and Implementation Plan, then re-read step 1.
    • You found a missed dependency / risk → log it in DECISIONS.md (create if absent) with a one-line rationale.
    • You finished early and a planned step is no longer needed → strike it from the plan with a note explaining why.
  6. Commit. Spec edits and code edits go in the same commit. Commit messages reference the spec id: feat(<id>): <step summary>.

PROJECT_LOG.md Discipline

Read the full file on GitHub · 127 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 127 lines · 59 tokens per session scan A a474f584b74e

Subscribe to this mod's changes

implement-specs is a skill published in the GitHub repository qinghaoliqaq/AutoCoder (11 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 59 tokens to every session and 1,129 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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