implement

A task-implementation workflow that uses Test-Driven Development, or TDD: write a failing test, add the smallest working change, then improve the code. It also defines task statuses and a git commit process.

In plain words
What is it for?
Use it to execute tasks from a plan, create and run tests, refactor after tests pass, update task status, and commit completed tasks with notes.
Why use it?
It makes unfinished work visible and checks each change against tests before it is considered complete.

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/madappgang/claude-code/implement
Any agent
npx skills add MadAppGang/claude-code --skill implement
Clone the repo
git clone --depth 1 https://github.com/MadAppGang/claude-code

Made for: Claude Code, Codex.

Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,522 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 $0.00015 $0.03522
Opus 5 $0.00008 $0.01761
Sonnet 5 $0.00003 $0.00704
Haiku 4.5 $0.00002 $0.00352

Measured 2d ago against content hash 47f3852eb6ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

implement 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 2d 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.

plugins/conductor/skills/implement/SKILL.md · 465 lines

How it starts

The opening of the file, as written. The whole thing — 465 lines — stays where its author put it; the contents beside it link to each section on GitHub.

plugin: conductor updated: 2026-01-20

<status_progression>
  Task status MUST follow this progression:
  - [ ] (pending) - Not started
  - [~] (in_progress) - Currently working
  - [x] (complete) - Finished
  - [!] (blocked) - Blocked by issue

  Only ONE task can be [~] at a time.
</status_progression>

<tdd_workflow>
  Follow Test-Driven Development for each task:

  **Red Phase:**
  1. Create test file for the feature
  2. Write tests defining expected behavior
  3. Run tests - confirm they FAIL
  4. Do NOT proceed until tests fail

  **Green Phase:**
  1. Write MINIMUM code to pass tests
  2. Run tests - confirm they PASS
  3. No refactoring yet

  **Refactor Phase:**
  1. Improve code clarity and performance
  2. Remove duplication
  3. Run tests - confirm they still PASS
</tdd_workflow>

<git_commit_protocol>
  After completing each task:
  1. Stage relevant changes
  2. Commit with proper format:
     ```
     <type>(<scope>): <description>

     - Detail 1
     - Detail 2

     Task: {phase}.{task}
     ```
  3. Attach git note with task summary:
     ```bash
     git notes add -m "Task: {phase}.{task} - {title}

     Summary: {what was accomplished}

     Files Changed:
     - {file1}: {description}

     Why: {business reason}" $(git log -1 --format="%H")
     ```
  4. Update metadata.json with commit SHA
</git_commit_protocol>

<commit_types>
  | Type | Use For |
  |------|---------|
  | feat | New feature |
  | fix | Bug fix |
  | docs | Documentation |
  | style | Formatting |
  | refactor | Code restructuring |
  | test | Adding tests |
  | chore | Maintenance |
  | perf | Performance |
</commit_types>

<workflow_adherence>
  ALWAYS follow procedures in conductor/workflow.md:
  - TDD Red/Green/Refactor cycle
  - Quality gates (>80% coverage, linting)
  - Document deviations in tech-stack.md
  - Phase Completion Protocol at phase end
</workflow_adherence>

<human_approval_gates>
  Pause and ask for user approval:
  - Before starting each new phase
  - When encountering blockers
  - Before marking phase complete
  - During Phase Completion Protocol Step 5
</human_approval_gates>

</critical_constraints>

<core_principles> Focus on exactly one task. Complete it fully before moving to next. No partial implementations.

<principle name="Test First" priority="critical">
  Write failing tests BEFORE implementation.
  This is the Red phase of TDD.
  Never skip this step.
</principle>

<principle name="Continuous Status Updates" priority="critical">
  Update plan.md status immediately when:
  - Starting a task ([~])
  - Completing a task ([x])
  - Encountering a blocker ([!] with note)
</principle>

<principle name="Traceable Commits" priority="high">
  Every commit links to track/task.
  Commit messages follow type convention.
  Git notes provide audit trail.
</principle>

</core_principles>

Read the full file on GitHub · 465 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. 2d ago First seen · 465 lines · 15 tokens per session scan A 47f3852eb6ad

Subscribe to this mod's changes

implement is a skill published in the GitHub repository MadAppGang/claude-code (279 stars, last pushed 5mo ago), licensed MIT. It adds 15 tokens to every session and 3,522 once invoked, about $0.0001 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.

Related

Other skills, from other repositories