implement

implement is a skill for Claude Code, Codex from tt-a1i/matt-skills-with-to-goal. It costs 16 tokens per session (97 once invoked), scanned A, a copy of implement, MIT.

A workflow for building software described by a specification or tickets. It includes writing tests where practical, checking the code during development, running the full test suite, reviewing the result, and committing the changes.

In plain words
What is it for?
Use it to implement ticketed work, apply test-driven development when suitable, run type checks and tests, review the implementation, and commit the finished changes.
Why use it?
It provides a repeatable path from a written request to tested and reviewed code.

Skill for Claude CodeCodex

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

Part of the matt-skills-with-to-goal plugin — 40 skills shipped together

Good fit Use it to implement ticketed work, apply test-driven development when suitable, run type checks and tests, review the implementation, and commit the finished changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tt-a1i/matt-skills-with-to-goal/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 tt-a1i/matt-skills-with-to-goal --skill implement
Clone the repo
git clone --depth 1 https://github.com/tt-a1i/matt-skills-with-to-goal

Made for: Claude Code, Codex.

Or install matt-skills-with-to-goal, the plugin that ships this one along with the rest of its 40 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/tt-a1i/matt-skills-with-to-goal/implement/github.svg)](https://agentmods.dev/skills/tt-a1i/matt-skills-with-to-goal/implement)
Your own site
<a href="https://agentmods.dev/skills/tt-a1i/matt-skills-with-to-goal/implement"><img src="https://agentmods.dev/badge/skills/tt-a1i/matt-skills-with-to-goal/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/tt-a1i/matt-skills-with-to-goal/implement"><img src="https://agentmods.dev/badge/skills/tt-a1i/matt-skills-with-to-goal/implement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 97 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 100% copy Near-identical to another mod 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 $0.00016 $0.00097
Opus 5 $0.00008 $0.00048
Sonnet 5 $0.00003 $0.00019
Haiku 4.5 $0.00002 $0.00010

Measured 12d ago against content hash 6d3fd9e83b8f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, 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 12d 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.

Origin

This is a copy

100% identical to implement — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/engineering/implement/SKILL.md · 16 lines

What it actually says

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

Use /tdd where possible, at pre-agreed seams.

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

Once done, use /code-review to review the 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. 12d ago First seen · 16 lines · 16 tokens per session scan A 6d3fd9e83b8f

Subscribe to this mod's changes

implement is a skill published in the GitHub repository tt-a1i/matt-skills-with-to-goal (161 stars, last pushed 14d ago), licensed MIT. It adds 16 tokens to every session and 97 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to implement, differing in 0 lines, and is treated as a copy.

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