logs-repro-harness

logs-repro-harness is a skill for Claude Code, Codex from pilinux/gorest. It costs 28 tokens per session (293 once invoked), scanned A, original, MIT.

A troubleshooting aid that reduces a flaky or environment-dependent software failure to a small repeatable test and records the relevant logs.

In plain words
What is it for?
Use it to create minimal reproduction commands, capture the first useful error or stack trace, compare environments, and choose focused diagnostic tests.
Why use it?
It makes difficult bugs easier to reproduce and separates possible causes such as code changes, settings, or differences between environments.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md.

Good fit Use it to create minimal reproduction commands, capture the first useful error or stack trace, compare environments, and choose focused diagnostic tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pilinux/gorest/logs-repro-harness
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 pilinux/gorest --skill logs-repro-harness
Clone the repo
git clone --depth 1 https://github.com/pilinux/gorest

Made for: Claude Code, Codex.

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 logs-repro-harness

README.md
[![agentmods](https://agentmods.dev/badge/skills/pilinux/gorest/logs-repro-harness/github.svg)](https://agentmods.dev/skills/pilinux/gorest/logs-repro-harness)
Your own site
<a href="https://agentmods.dev/skills/pilinux/gorest/logs-repro-harness"><img src="https://agentmods.dev/badge/skills/pilinux/gorest/logs-repro-harness/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 logs-repro-harness

Your own site · 80×15
<a href="https://agentmods.dev/skills/pilinux/gorest/logs-repro-harness"><img src="https://agentmods.dev/badge/skills/pilinux/gorest/logs-repro-harness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 293 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00028 $0.00293
Opus 5 $0.00014 $0.00147
Sonnet 5 $0.00006 $0.00059
Haiku 4.5 $0.00003 $0.00029

Measured 11d ago against content hash ca8713d9f03f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

logs-repro-harness 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 11d 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/skills/logs-repro-harness/SKILL.md · 46 lines

What it actually says

Logs Repro Harness

When to Use

  • An issue is flaky, hard to reproduce locally, or depends on environment configuration.

Responsibilities

  • Produce the smallest reproducible commands that trigger the failure.
  • Capture key log lines, stack traces, and environment differences needed to reproduce.
  • Provide targeted probes to distinguish root-cause hypotheses.

Rules

  • Never request or reveal secrets.
  • Use source setTestEnv.sh when environment variables are required.
  • Prefer go test -run <TestName> <pkg> for focused reproduction.

Output

  • Minimal repro: 1-3 commands.
  • Observed output: first actionable error or stack lines.
  • Hypotheses: 1-3 candidates with next probe commands.

Examples

  • "Test X passes locally but fails in CI" - compare env vars, capture output diff.
  • "Intermittent timeout in Redis test" - isolate with CONNTTL tuning and retry logic.
  • test-runner, fix-suggester, config-loader-helper

References

  • logs/ directory, setTestEnv.sh, AGENTS.md
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. 11d ago First seen · 46 lines · 28 tokens per session scan A ca8713d9f03f

Subscribe to this mod's changes

logs-repro-harness is a skill published in the GitHub repository pilinux/gorest (504 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 293 once invoked, about $0.0001 per session on Opus 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 2026-08-30.