implement

implement is a skill for Claude Code, Codex from FradSer/dotclaude. It costs 39 tokens per session (262 once invoked), scanned A, original, MIT.

A coding workflow that implements work described by a specification or set of tickets. It uses agreed behavior scenarios and test seams, then checks the code and reviews the result before committing it.

In plain words
What is it for?
Use it to build a feature from a spec or tickets, run type checks and tests, perform a code review, and commit the completed work.
Why use it?
It gives planned work a structured path into the codebase and reduces the chance of finishing with untested or unreviewed changes.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present.

Part of the mattpocock plugin — 46 skills shipped together

Good fit Use it to build a feature from a spec or tickets, run type checks and tests, perform a code review, and commit the completed work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fradser/dotclaude/implement
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.

Any agent
npx skills add FradSer/dotclaude --skill implement
Clone the repo
git clone --depth 1 https://github.com/FradSer/dotclaude

Made for: Claude Code, Codex.

Or install mattpocock, the plugin that ships this one along with the rest of its 46 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for implement

README.md
[![agentmods](https://agentmods.dev/badge/skills/fradser/dotclaude/implement/github.svg)](https://agentmods.dev/skills/fradser/dotclaude/implement)
Your own site
<a href="https://agentmods.dev/skills/fradser/dotclaude/implement"><img src="https://agentmods.dev/badge/skills/fradser/dotclaude/implement/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for implement

Your own site · 80×15
<a href="https://agentmods.dev/skills/fradser/dotclaude/implement"><img src="https://agentmods.dev/badge/skills/fradser/dotclaude/implement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 262 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00039 $0.00262
Opus 5.5 $0.00016 $0.00105
Sonnet 5.5 $0.00008 $0.00052
Haiku 4.5 $0.00004 $0.00026

Measured 23d ago against content hash a04484c7f8bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 23d 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.

mattpocock/skills/engineering/implement/SKILL.md · 20 lines

What it actually says

Implement the work described by the user in the spec or tickets.

Use /mattpocock:bdd where possible, at pre-agreed seams. During the Automation phase, load /mattpocock:tdd (BDD-driven) for test quality, seams, and mocking guidance.

Run typechecking regularly, single test files regularly, and the full test suite once at the end.

Once done, use /mattpocock:code-review to review the work.

CRITICAL: BDD at pre-agreed seams, review before commit

Use /mattpocock:bdd where possible, one red-green slice at a time at pre-agreed seams. Load /mattpocock:tdd (BDD-driven) during the Automation phase for test quality, seams, and mocking guidance. When the work is done, run /mattpocock:code-review over it — a commit without the two-axis review is not finished work.

Commit your work to the current branch.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 23d ago First seen · 20 lines · 39 tokens per session scan A a04484c7f8bc

Subscribe to this mod's changes

implement is a skill published in the GitHub repository FradSer/dotclaude (594 stars, last pushed 8d ago), licensed MIT. It adds 39 tokens to every session and 262 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-24.

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