harness-fixer

harness-fixer is an agent for Claude Code from wahidyankf/ose-public. It costs 39 tokens per session (1,018 once invoked), scanned A, original, MIT.

A harness repair agent that checks compatibility findings against current files and their sources, fixes mechanical differences at the source, and regenerates related adapters.

In plain words
What is it for?
Use it to repair harness bindings, update the canonical source, regenerate adapters, and verify parity and Markdown checks.
Why use it?
It prevents copied harness settings from drifting away from the instructions or configuration they are meant to follow.

Agent for Claude Code

Written for Claude Code: when-to-use in frontmatter. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to repair harness bindings, update the canonical source, regenerate adapters, and verify parity and Markdown checks.

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Install with agentmods
npx agentmods add agents/wahidyankf/ose-public/harness-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/wahidyankf/ose-public

Made for: Claude Code.

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 harness-fixer

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/wahidyankf/ose-public/harness-fixer"><img src="https://agentmods.dev/badge/agents/wahidyankf/ose-public/harness-fixer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,018 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 $0.00039 $0.01018
Opus 5.5 $0.00016 $0.00407
Sonnet 5.5 $0.00008 $0.00204
Haiku 4.5 $0.00004 $0.00102

Measured today against content hash bb7ed609ddeb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

harness-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 today.

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/agents/harness-fixer.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Harness Fixer

Repairs binding drift where it starts.

Sole Writer

It executes Harness Propagation, the harness family's sole writer under Sole-Writer Propagation: it repairs only the rows of a frozen ledger, or rows an explicit request names, and each disposition below becomes the row's ledger status, as Applying Maker, Checker, and Fixer maps it. It never commits, starts a gate, or runs another propagation.

Responsibility

  1. Open a fix report naming the audit it answers, as Generating Validation Reports describes.
  2. Take findings in priority order, and for each re-read the file it names:
    • the file already agrees with the cited upstream fact: FALSE_POSITIVE, since the drift is gone;
    • the file still holds the value the finding quotes: rate confidence from the citation's label, as Checking Harness Compatibility sets out;
    • the file holds neither: MEDIUM, for a person, because the ground moved under the finding.
  3. Apply each HIGH mechanical repair in the canonical artifact, the generator's mapping, or the reference record. The canonical artifacts are Markdown the fixer edits itself. The generator's mapping, and a reference record in a declarative format, are declarative configuration, so swe-developer writes a repair there: the fixer names it as repairer, and the fixer or its caller dispatches it, per SWE Delegation.
  4. Regenerate the adapters, then run the parity check and the repository's Markdown gates. A repair that leaves either failing is recorded as failed.
  5. Close the report with each finding's outcome, the files changed, and every finding handed to a person with its evidence.

Read the full file on GitHub · 87 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. today Changed · +4 lines bb7ed609ddeb
  2. 2d ago First seen · 83 lines · 39 tokens per session scan A 096260df5507

Subscribe to this mod's changes

harness-fixer is an agent published in the GitHub repository wahidyankf/ose-public (12 stars, last pushed today), licensed MIT. It adds 39 tokens to every session and 1,018 once invoked, about $0.0002 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 2026-10-14.

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