swe:recent-commit-bug-hunt

swe:recent-commit-bug-hunt is a skill for Claude Code from ckorhonen/swe-skills. It costs 100 tokens per session (1,524 once invoked), scanned A, original, MIT.

A recent-change investigation that examines commits (recorded code changes) for evidence of likely bugs or regressions.

In plain words
What is it for?
Use it to review recent commits, check what may have broken, and define narrowly scoped fixes supported by repository evidence.
Why use it?
It helps separate concrete signs of broken behavior from weaker suspicions and irrelevant noise.

Skill for Claude Code

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

Part of the swe-skills plugin — 17 skills shipped together

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.

agentmods
npx agentmods add skills/ckorhonen/swe-skills/recent-commit-bug-hunt
Any agent
npx skills add ckorhonen/swe-skills --skill recent-commit-bug-hunt
Clone the repo
git clone --depth 1 https://github.com/ckorhonen/swe-skills

Made for: Claude Code.

Or install swe-skills, the plugin that ships this one along with the rest of its 17 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 swe:recent-commit-bug-hunt

README.md
[![agentmods](https://agentmods.dev/badge/skills/ckorhonen/swe-skills/recent-commit-bug-hunt.svg)](https://agentmods.dev/skills/ckorhonen/swe-skills/recent-commit-bug-hunt)
Your own site
<a href="https://agentmods.dev/skills/ckorhonen/swe-skills/recent-commit-bug-hunt"><img src="https://agentmods.dev/badge/skills/ckorhonen/swe-skills/recent-commit-bug-hunt.svg" alt="Measured on agentmods" height="20"></a>
Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,524 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00100 $0.01524
Opus 5 $0.00050 $0.00762
Sonnet 5 $0.00020 $0.00305
Haiku 4.5 $0.00010 $0.00152

Measured 6d ago against content hash d8cc3eb9462d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

swe:recent-commit-bug-hunt 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 6d 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.

skills/recent-commit-bug-hunt/SKILL.md · 250 lines

How it starts

The opening of the file, as written. The whole thing — 250 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SWE Recent Commit Bug Hunt

What This Skill Does

Use this skill to inspect recent code changes conservatively and separate:

  • Real regression signals
  • Plausible but weaker suspicions
  • Noise that should not become a fix proposal

The outcome should be a ranked list of evidence-backed findings plus small, behavior-focused remediation sessions for the findings that clear the bar.

When To Use

Use this skill when the user wants to:

  • Review recent commits for likely regressions
  • Check whether their latest changes introduced bugs
  • Mine recent PRs or SHAs for concrete bug signals
  • Propose narrowly scoped follow-up fix sessions

Do Not Use

Do not use this skill for:

  • A generic code smell review
  • A security or dependency audit
  • A large-scale refactor plan
  • Speculative bug hunting with no commit scope

Inputs To Confirm

Confirm or infer:

  • Repository set
  • Author filter, if any
  • Time window
  • Whether linked PR or CI context is available
  • Whether local validation can be run

If scope is missing, ask for the repo set, author, and timeframe before proceeding.

Evidence Sources

Concrete evidence includes:

  • Commit SHAs
  • Pull requests
  • File paths
  • Diffs
  • Failing tests
  • CI failures or warnings
  • Local validation signals directly tied to the changed area

If the evidence is weak, report the suspicious finding and skip the fix proposal.

Hard Constraints

  • Use only concrete repo evidence
  • Do not invent bugs
  • Do not overstate confidence
  • Do not propose speculative fixes when the evidence is weak
  • Prioritize the smallest safe fix possible
  • Avoid refactors, cleanup work, or unrelated improvements
  • Keep each remediation proposal tightly scoped to the implicated files and behavior

Instructions

Step 1: Define The Review Scope

Respect the user-provided repository set, author filter, and time window exactly.

If the user names a repo group or org surface, stay within that scope.

Step 2: Collect Recent Changes And Context

Read the full file on GitHub · 250 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. 6d ago First seen · 250 lines · 100 tokens per session scan A d8cc3eb9462d

Subscribe to this mod's changes

swe:recent-commit-bug-hunt is a skill published in the GitHub repository ckorhonen/swe-skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 100 tokens to every session and 1,524 once invoked, about $0.0005 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 2026-08-31.

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