implement-spec
Implement a specification in code.
Install / Use
npx skills add mattpocock/skills --skill implement-specInstalls into whichever agent you are using.
SKILL.md
Installable skill definition
Quality Score
Category
Development & EngineeringSupported Platforms
Tags
Our assessment of implement-spec
implement-spec scores 67/100 on our quality scale, 1256th of 1,995 Development & Engineering skills we index.
Its SKILL.md is 2.0 KB long, lightly structured (1 heading) and no code examples: moderately detailed.
With 268,790 GitHub stars, it is one of the more widely adopted skills in the catalogue.
Maintenance, license and trust
- The repository was last updated 2 days ago, so implement-spec is actively maintained.
- It is released under the MIT license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
Safety scan
No issues foundOur scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands.
Automated pattern scan on 2026-09-26. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.
implement-spec compared with similar skills
All 4 of these similar skills score higher than implement-spec; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| implement-spec (this skill)by mattpocock | 67 | 268.8k | 2d ago | SKILL.md |
| ai-job-searchby MadsLorentzen | 100 | 44.0k | 5d ago | CLAUDE.md |
| claude-howtoby luongnv89 | 100 | 41.7k | today | CLAUDE.md |
| algorithmic-artby anthropics | 100 | 177.9k | 3d ago | SKILL.md |
| pptxby anthropics | 100 | 177.9k | 3d ago | SKILL.md |
Frequently asked questions
- How do I install implement-spec?
- Run
npx skills add mattpocock/skills --skill implement-spec. The install tabs above show the steps for each supported agent. - Which AI agents does implement-spec work with?
- It is written for Universal, as a SKILL.md file. Other agents that read the same format can often use it too.
- Is implement-spec safe to use?
- Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. It is MIT-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is implement-spec still maintained?
- The repository was last updated 2 days ago, so implement-spec is actively maintained.
Skill content
View source on GitHubname: implement-spec description: "Implement a specification in code." disable-model-invocation: true
You have been provided a spec. This spec should have tickets associated with it, describing how to implement the spec.
The goal is a PR which implements the entire spec on a single branch.
The tickets are not a list of steps. They are a task graph with blocking relationships between them. This means there is always a frontier of tickets which are ready to be grabbed.
Communication to and from subagents should be sparse. Communicate primarily through context pointers: to the spec, tickets, research notes, and previous commits. Don't duplicate information already available via pointers.
Implementer subagents should be run in the background where possible for maximum concurrency.
Steps
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Read the spec and tickets. Read enough to understand the task graph.
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(optional) Use an exploration subagent to conduct any exploration required by the tickets - relevant codebase files or external documentation. Ensure the exploration subagent can save files - it should save its markdown notes in a directory outside the repo, accessible by all future subagents. This lets implementer subagents focus on implementation rather than exploration.
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Create a branch, and a draft PR. The PR should be marked as 'closing' the spec issue and tickets.
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Use implementer subagents to implement each ticket. Each implementer subagent should work in its own worktree, on its own branch.
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Once an implementer subagent completes, merge its work to the PR branch with a merger subagent.
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If this changes the frontier of available tickets, kick off more implementer subagents to work on the new tickets. This allows for maximum concurrency.
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Once all tickets are complete, run /code-review on the PR branch. Fix all issues raised by the code review in a single implementer subagent.
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Mark the PR as ready for review.
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Clean up all implementer subagent worktrees.
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Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.