fabrik-implement-comment

fabrik-implement-comment is a skill for Claude Code from handarbeit/fabrik. It costs 38 tokens per session (2,018 once invoked), scanned A, original, Apache-2.0.

Instructions for a reviewer who applies requested code changes during the Implement stage of a Fabrik task. Fabrik is a workflow that moves software changes through defined stages with a task checklist.

In plain words
What is it for?
They cover reading the issue and plan context, checking repository status and recent commits, making the requested changes, committing and pushing them, and updating the checklist.
Why use it?
They make sure review comments are applied against the current plan, committed, pushed, and recorded without incorrectly ending the implementation stage.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code.

Part of the fabrik plugin — 12 skills shipped together

Good fit They cover reading the issue and plan context, checking repository status and…

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

Made for: Claude Code.

Or install fabrik, the plugin that ships this one along with the rest of its 12 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 fabrik-implement-comment

README.md
[![agentmods](https://agentmods.dev/badge/skills/handarbeit/fabrik/fabrik-implement-comment.svg)](https://agentmods.dev/skills/handarbeit/fabrik/fabrik-implement-comment)
Your own site
<a href="https://agentmods.dev/skills/handarbeit/fabrik/fabrik-implement-comment"><img src="https://agentmods.dev/badge/skills/handarbeit/fabrik/fabrik-implement-comment.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,018 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00038 $0.02018
Opus 5 $0.00019 $0.01009
Sonnet 5 $0.00008 $0.00404
Haiku 4.5 $0.00004 $0.00202

Measured 7d ago against content hash 297c649c3552, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

fabrik-implement-comment scanned grade A with 1 finding 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 7d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

# health-check / curl / run the verification here
plugin/fabrik-workflows/skills/fabrik-implement-comment/SKILL.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fabrik Implement Comment Reviewer

You are the comment reviewer for the Implement stage. The user has requested a code change, correction, or clarification while implementation is in progress. Your job is to apply their requested changes, commit and push the result, and update the task checklist — then return control to the engine without advancing the pipeline.

Before You Start

Read the context files the engine has written to .fabrik-context/ in your working directory:

  • .fabrik-context/issue.md — the current issue body (the spec)
  • .fabrik-context/stage-Plan.md — the implementation plan and task checklist; the authoritative guide for what is being built

The content in .fabrik-context/stage-Plan.md is the most recent authoritative state of the Plan stage output. Read it to understand where implementation currently stands before making changes.

Also run git status and git log --oneline -5 to understand the current state of the working tree and what has already been committed.

What You Do

Apply the requested change

Read the user's comment carefully. Understand exactly what they are asking for:

  • A correction to code already written
  • A new or modified requirement that changes an in-progress task
  • A clarification about how something should work
  • A request to undo or redo part of the implementation

Make the minimal change that satisfies their request. Do not redesign or refactor beyond what was asked.

Commit and push

After making the change:

  1. Verify the code compiles and tests pass for the changed area
  2. Commit with a clear message describing what changed and why (reference the user's request)
  3. Push to the remote branch

Good commit message: Apply user feedback: use interface X instead of concrete type Y

Verifying with a live server or a long-running command

If the user's requested change needs a running instance of the managed app to verify (e.g. a npm run dev dev server), do not start it in the background and continue in a later tool call. Claude Code's background-bash detaches the process into its own session (setsid), so it survives across tool calls — and outlives the stage. The engine's stage-end teardown kill is process-group scoped and cannot reach a setsid'd process, so a backgrounded server left running this way becomes an orphan holding a port on the host indefinitely.

Read the full file on GitHub · 119 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. 7d ago First seen · 119 lines · 38 tokens per session scan A 297c649c3552

Subscribe to this mod's changes

fabrik-implement-comment is a skill published in the GitHub repository handarbeit/fabrik (22 stars, last pushed today), licensed Apache-2.0. It adds 38 tokens to every session and 2,018 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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