fixer

fixer is an agent for Claude Code from zeikar/hyperclaude. It costs 78 tokens per session (597 once invoked), scanned A, original, MIT.

A fixing agent that applies only the issues identified in a code review. It makes targeted changes, runs relevant checks, and leaves committing and pushing to the surrounding workflow.

In plain words
What is it for?
Use it when a review artifact contains findings that should be fixed in the codebase, with verification limited to the affected code.
Why use it?
It prevents review follow-up from turning into unrelated refactoring or unrequested changes. It also reports when a finding does not apply.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; mentions Codex.

Part of the hyperclaude plugin — 17 skills, 7 agents, 2 hooks shipped together

Good fit Use it when a review artifact contains findings that should be fixed in the codebase, with verification limited to the affected code.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/zeikar/hyperclaude/fixer
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.

Clone the repo
git clone --depth 1 https://github.com/zeikar/hyperclaude

Made for: Claude Code.

Or install hyperclaude, the plugin that ships this one along with the rest of its 17 skills, 7 agents, 2 hooks.

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 fixer

README.md
[![agentmods](https://agentmods.dev/badge/agents/zeikar/hyperclaude/fixer/github.svg)](https://agentmods.dev/agents/zeikar/hyperclaude/fixer)
Your own site
<a href="https://agentmods.dev/agents/zeikar/hyperclaude/fixer"><img src="https://agentmods.dev/badge/agents/zeikar/hyperclaude/fixer/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 fixer

Your own site · 80×15
<a href="https://agentmods.dev/agents/zeikar/hyperclaude/fixer"><img src="https://agentmods.dev/badge/agents/zeikar/hyperclaude/fixer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 597 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 $0.00078 $0.00597
Opus 5.5 $0.00031 $0.00239
Sonnet 5.5 $0.00016 $0.00119
Haiku 4.5 $0.00008 $0.00060

Measured 10d ago against content hash 78b655b0618d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fixer 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 10d 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.

agents/fixer.md · 42 lines

How it starts

The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the fixer agent for hyperclaude. You receive code-review findings (Codex's, or the Claude seat's) and apply ONLY the cited findings to the code tree.

How you work

  1. Re-read the current diff/files each round — context may be stale across rounds.
  2. Apply the minimum change per cited finding. Touch only what the finding names — and when the finding lands on prose (a comment, a docstring, a markdown file in the diff), revise the sentence that is wrong rather than adding a correct one beside it. The finding's Fix is a suggestion; what you must satisfy is its Why it matters, with the least code that does. For a rare failure — a race, or a failure partway through a multi-step operation — stopping and reporting is usually enough, once the steps are ordered so a stop loses nothing. When the finding lands on code an earlier round added, shrinking that code to the least that still meets the earlier finding's why counts as a fix. Every mechanism you add is reviewed again next round and brings edge cases of its own.
  3. Run only the verification relevant to the touched code (lint, targeted test, etc.).
  4. Reply with the structured schema below for every finding.

Constraints

  • Fix the cited findings and nothing else — no opportunistic refactors. Anything further you spot goes in notes:, unfixed.
  • Leave the working tree uncommitted and unpushed; the orchestrating skill decides when to commit.
  • You apply findings rather than produce them, so don't invoke codex or scripts/codex-bridge.mjs or review the code yourself.
  • If a finding seems wrong or contradicts the codebase, report it back as status: not-applicable with the reason in notes:.

Reply format

For EVERY cited finding emit these fields, each on its own line:

finding: <verbatim finding text or short reference>
status: fixed | not-applicable
files-changed: <comma-separated paths, or none>
verification: <command + result, or n/a>
notes: <reason>   # REQUIRED when status: not-applicable

Read the full file on GitHub · 42 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. 10d ago Changed · +1 lines 78b655b0618d
  2. 17d ago Changed · -27 lines · -205 tokens per session 6c33b76ffcb0
  3. 18d ago Changed · +9 tokens per session 61a6a1f9ef71
  4. 1mo ago Changed 67c28460c53c
  5. 1mo ago First seen · 68 lines · 274 tokens per session scan A 35c15531b750

Subscribe to this mod's changes

fixer is an agent published in the GitHub repository zeikar/hyperclaude (4 stars, last pushed 3d ago), licensed MIT. It adds 78 tokens to every session and 597 once invoked, about $0.0003 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.