bug-fix

A guided process for fixing a registered software bug from investigation through testing and closure.

In plain words
What is it for?
It helps developers select a bug, review it, write a failing test, apply a fix, validate the result, check nearby code, and close the bug.
Why use it?
It keeps the fix organised and requires a regression check, a test that helps ensure the same bug does not return.

Skill for Claude CodeCodex

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/srnichols/plan-forge/bug-fix
Any agent
npx skills add srnichols/plan-forge --skill bug-fix
Clone the repo
git clone --depth 1 https://github.com/srnichols/plan-forge

Made for: Claude Code, Codex.

Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,773 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 $0.00080 $0.01773
Opus 5 $0.00040 $0.00886
Sonnet 5 $0.00016 $0.00355
Haiku 4.5 $0.00008 $0.00177

Measured 2d ago against content hash 77136dc97928, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bug-fix 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 2d 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.

.github/skills/bug-fix/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/bug-fix Skill — Guided Bug-Fix Workflow

Trigger

"Fix this bug" / "Work the bug queue" / "Close out bug-2026-…" / /bug-fix

Purpose

The Plan Forge bug-fix path (forge_bug_registerforge_bug_update_statusforge_bug_validate_fix) is a tight state machine but it doesn't compose with the project's skill suite by default. This skill wraps the state machine with the right skills at each transition so a fix that passes the original scanner doesn't ship a regression in a neighbour.

The bug tools surface skillAdvisory hints in their responses — this skill is the canonical realisation of those hints.

Inputs

Flag Required Default Description
--bugId <id> No first open bug Specific bug to work; otherwise picks the highest-severity open bug
--scanner <name> No match all Filter by scanner (unit, integration, ui-playwright, visual-diff, flakiness, mutation, load-stress, contract, performance-budget)
--no-sweep No off Skip the post-fix /test-sweep — only use for hot-fix paths under time pressure

Steps

1. Load the bug

forge_bug_list --status open --severity high

Pick the bug (--bugId overrides). Read the full record: scanner, classification, affectedFiles, evidence, reproSteps. Stop and report if:

  • The bug is already in a terminal status (fixed / wont-fix / duplicate)
  • classification === "infra" — surface to the human; the fix is likely CI/runner config, not product code
  • classification === "flake" — run /forge-troubleshoot first; a flake fix is a different workflow

2. Pre-fix review (collateral surface)

Run /code-review scoped to bug.affectedFiles. The goal is to surface related issues that should be fixed in the same commit — fixing one bug while leaving its neighbours broken trains the next agent session to keep doing the same.

For complexity-class bugs (scanner === "mutation", or /code-review flags high cyclomatic complexity in the affected functions), pivot to /forge-quench first. Quench's Chesterton's-Fence pass clarifies the logic so the fix lands on a stable shape, not on top of confusion.

Read the full file on GitHub · 127 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. 2d ago First seen · 127 lines · 80 tokens per session scan A 77136dc97928

Subscribe to this mod's changes

bug-fix is a skill published in the GitHub repository srnichols/plan-forge (5 stars, last pushed 22d ago), licensed MIT. It adds 80 tokens to every session and 1,773 once invoked, about $0.0004 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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