implement-issue

implement-issue is a skill for Claude Code from specsnl/agent-specs. It costs 117 tokens per session (711 once invoked), scanned A, original, MIT.

A workflow for taking a GitHub or Linear issue and implementing its requirements in a new branch. An issue is a tracked work request that may include acceptance criteria, linked designs, and discussion.

In plain words
What is it for?
Use it to read an issue, clarify its scope and completion criteria, create a suitable branch, implement the change, and prepare the work for review.
Why use it?
It turns the issue’s actual requirements into a controlled code change while keeping the base branch untouched. The workflow stops before opening a pull request.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the github plugin — 3 skills shipped together

Good fit Use it to read an issue, clarify its scope and completion criteria, create a suitable branch, implement the change, and prepare the work for review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/specsnl/agent-specs/implement-issue
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 specsnl/agent-specs --skill implement-issue
Clone the repo
git clone --depth 1 https://github.com/specsnl/agent-specs

Made for: Claude Code.

Or install github, the plugin that ships this one along with the rest of its 3 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-issue

README.md
[![agentmods](https://agentmods.dev/badge/skills/specsnl/agent-specs/implement-issue/github.svg)](https://agentmods.dev/skills/specsnl/agent-specs/implement-issue)
Your own site
<a href="https://agentmods.dev/skills/specsnl/agent-specs/implement-issue"><img src="https://agentmods.dev/badge/skills/specsnl/agent-specs/implement-issue/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-issue

Your own site · 80×15
<a href="https://agentmods.dev/skills/specsnl/agent-specs/implement-issue"><img src="https://agentmods.dev/badge/skills/specsnl/agent-specs/implement-issue.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 711 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 $0.00117 $0.00711
Opus 5.5 $0.00047 $0.00284
Sonnet 5.5 $0.00023 $0.00142
Haiku 4.5 $0.00012 $0.00071

Measured 1mo ago against content hash 47e9db292871, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

implement-issue 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 1mo 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/github/skills/implement-issue/SKILL.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement an issue

Turn an issue (GitHub or Linear) into a branch of clean, incremental commits — without opening a pull request. The user opens the PR when they decide it's ready; this skill deliberately stops just short of that.


Phase 1 — Read the issue

Fetch the full issue before touching git so you understand the actual requirement.

  • GitHub — prefer a GitHub MCP tool (e.g. get_issue) when one is available; otherwise use the CLI: gh issue view <number> --json title,body,labels,comments.
  • Linear — use the Linear MCP get_issue (accepts the issue identifier such as ABC-456).

Extract and note:

  • The concrete requirement and scope.
  • Acceptance criteria / definition of done.
  • Any linked issues, designs, or discussion in comments that change the approach.

If the requirement is ambiguous, ask the user before implementing.


Phase 2 — Create a branch

Never implement directly on the base branch.

  1. Confirm the working tree is clean (git status) and note the current base branch (usually main).

  2. Create and switch to a new branch with a descriptive name derived from the issue id and a short slug of its title:

    • feat/<issue-id>-<slug> for new functionality
    • fix/<issue-id>-<slug> for bug fixes
    • chore/<issue-id>-<slug> / docs/... / refactor/... as appropriate
    git switch -c feat/GH-123-short-slug
    

Phase 3 — Implement

Implement the change following the repository's existing conventions and patterns. Match the surrounding code style; reuse existing utilities rather than adding new ones. Run the project's checks/tests as you go.


Phase 4 — Commit nicely

Commit as you complete logical units of work — not one large dump at the end.

  • Small, self-contained commits, each leaving the tree in a working state.
  • Clear, imperative subject lines that follow the repo's convention (e.g. Conventional Commits when the repo uses them), referencing the issue where it helps (e.g. feat: add X (GH-123) or Refs ABC-456).
  • Keep unrelated changes out of a commit.

Read the full file on GitHub · 85 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. 1mo ago Changed · +1 lines 47e9db292871
  2. 1mo ago First seen · 84 lines · 117 tokens per session scan A 02077d6039a7

Subscribe to this mod's changes

implement-issue is a skill published in the GitHub repository specsnl/agent-specs (2 stars, last pushed 1mo ago), licensed MIT. It adds 117 tokens to every session and 711 once invoked, about $0.0005 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 2026-08-31.

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