Agent skill

Implement Spec

by Xircth in Xircth/VibeX

“Implement a specification in code.”

— description from SKILL.md by Xircth
Apache-2.0Auto-check passedKnowledge Management

Install Implement Spec

skills CLI
$ npx skills add Xircth/VibeX --skill implement-spec -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Xircth/VibeX implement-spec --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Xircth/VibeX.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/implement-spec .claude/skills/implement-spec && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
implement-spec
GitHub stars
136
Used in
1 other repo
Token cost
~511 tokens
SKILL.md length
300 words
Files
2
Skills in repo
6
Repo updated
First seen
Licence
Apache-2.0

At a glance

  • Works in 9 steps: Read the spec and tickets. Read enough… → (optional) Use an exploration subagent… → Create a branch, and a draft PR. The PR… → …
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

About this skill

Implement Spec is a skill in Xircth/VibeX (136 stars). Its SKILL.md is about 511 tokens, with 1 other file in the folder, and copies of it appear in 1 other owners' repositories. Licence: Apache-2.0.

Workflow steps

9 steps, taken from the first numbered list in SKILL.md.

  1. Read the spec and tickets. Read enough to understand the task graph.
  2. (optional) Use an exploration subagent to conduct any exploration required by the tickets - relevant codebase files or external…
  3. Create a branch, and a draft PR. The PR should be marked as 'closing' the spec issue and tickets.
  4. Use implementer subagents to implement each ticket. Each implementer subagent should work in its own worktree, on its own branch.
  5. Once an implementer subagent completes, merge its work to the PR branch with a merger subagent.
  6. If this changes the frontier of available tickets, kick off more implementer subagents to work on the new tickets. This allows for maximum…
  7. 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.
  8. Mark the PR as ready for review.
  9. Clean up all implementer subagent worktrees.

What it can do on your machine

Read from SKILL.md and the folder at commit 4a2c06d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Implement Spec loads about 511 tokens when it runs. Until then it costs about 12 tokens; SKILL.md has 300 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~12
When it runs · the whole SKILL.md, loaded when a task matches
~511

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Xircth/VibeX at commit 4a2c06d, republished under its Apache-2.0 licence (© Xircth). 300 words, ~511 tokens.

Download SKILL.mdSave it as .claude/skills/implement-spec/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
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

  1. Read the spec and tickets. Read enough to understand the task graph.

  2. (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.

  3. Create a branch, and a draft PR. The PR should be marked as 'closing' the spec issue and tickets.

  4. Use implementer subagents to implement each ticket. Each implementer subagent should work in its own worktree, on its own branch.

  5. Once an implementer subagent completes, merge its work to the PR branch with a merger subagent.

  6. If this changes the frontier of available tickets, kick off more implementer subagents to work on the new tickets. This allows for maximum concurrency.

  7. 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.

  8. Mark the PR as ready for review.

  9. Clean up all implementer subagent worktrees.

© Xircth, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in .agents/skills/implement-spec of Xircth/VibeX.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit 4a2c06d

Used in 1 other repository

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in Xircth/VibeX, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Implement Spec next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Implement Spec compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Implement Spec this skillXircth/VibeX1361 repos~511Automated safety check: PassApache-2.0
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Baoyu URL To Markdownsdyckjq-lab/llm-wiki-skill2.5k2 repos~3.2kAutomated safety check: PassNone
Obsidian CLIAtmosphere/atmosphere3.8k13 repos~795Automated safety check: PassApache-2.0
Esm Cjs Risk Scanlogseq/logseq45k—~3.3kAutomated safety check: PassAGPL-3.0
Capture Conversationoutline/outline41k—~474Automated safety check: PassCustom licence

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Questions about Implement Spec

How do I install Implement Spec in Claude Code?

Run `npx skills add Xircth/VibeX --skill implement-spec -a claude-code`. Or copy the skill folder (.agents/skills/implement-spec in Xircth/VibeX) into .claude/skills/implement-spec in your project. Claude Code loads it when a task matches its description.

How do I install Implement Spec in Codex?

Run `npx skills add Xircth/VibeX --skill implement-spec -a codex`. Or copy the skill folder (.agents/skills/implement-spec in Xircth/VibeX) into .agents/skills/implement-spec in your project. Codex loads it when a task matches its description.

Can I use Implement Spec in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Xircth/VibeX --skill implement-spec -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/implement-spec, .gemini/skills/implement-spec, .github/skills/implement-spec and .opencode/skills/implement-spec in your project.

What does Implement Spec need to run?

SKILL.md names no scripts, command-line tools or credentials: Implement Spec is instructions for the agent only.

Does Implement Spec access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Implement Spec safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Implement Spec use?

Implement Spec is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Implement Spec use?

About 511 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Implement Spec?

Skills that share tags, products or a category with Implement Spec: Logseq Review Workflow Eval (logseq/logseq, 45k stars), Baoyu URL To Markdown (sdyckjq-lab/llm-wiki-skill, 2.5k stars), Obsidian CLI (Atmosphere/atmosphere, 3.8k stars) and Esm Cjs Risk Scan (logseq/logseq, 45k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Implement Spec?

Xircth (a GitHub user) maintains it in Xircth/VibeX, which has 136 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on September 29, 2026.

Source: Xircth/VibeX on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.