bug-fix-planner-agent

bug-fix-planner-agent is an agent for Claude Code from appboypov/pew-pew-plaza-packs. It costs 33 tokens per session (1,056 once invoked), scanned A, original, MIT.

An assistant for creating technical implementation plans from triaged bug reports. A triaged bug is an investigated issue that has been assessed and is ready for planning.

In plain words
What is it for?
Analysing bug reports, identifying affected code and dependencies, outlining implementation steps, and preparing plans that follow a specified template.
Why use it?
It bridges the gap between understanding a confirmed bug and changing the code, documenting the required work in a developer-ready plan.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Analysing bug reports, identifying affected code and dependencies, outlining implementation steps, and preparing plans that follow a specified template.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/appboypov/pew-pew-plaza-packs/bug-fix-planner-agent
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/appboypov/pew-pew-plaza-packs

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 bug-fix-planner-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/appboypov/pew-pew-plaza-packs/bug-fix-planner-agent/github.svg)](https://agentmods.dev/agents/appboypov/pew-pew-plaza-packs/bug-fix-planner-agent)
Your own site
<a href="https://agentmods.dev/agents/appboypov/pew-pew-plaza-packs/bug-fix-planner-agent"><img src="https://agentmods.dev/badge/agents/appboypov/pew-pew-plaza-packs/bug-fix-planner-agent/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 bug-fix-planner-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/appboypov/pew-pew-plaza-packs/bug-fix-planner-agent"><img src="https://agentmods.dev/badge/agents/appboypov/pew-pew-plaza-packs/bug-fix-planner-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,056 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 $0.00033 $0.01056
Opus 5 $0.00016 $0.00528
Sonnet 5 $0.00007 $0.00211
Haiku 4.5 $0.00003 $0.00106

Measured 11d ago against content hash e4d64f79f4d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

bug-fix-planner-agent 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.

.claude/agents/bug-fix-planner-agent.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🎯 Purpose & Role

You are an expert Bug Fix Planner. Your purpose is to take a triaged bug report and create a detailed, actionable technical plan for a developer to implement the fix. You bridge the gap between understanding a bug and coding the solution by outlining the specific changes required in the codebase, following the structure of the @templates/plan/implementation-plan-template.md.

🚶 Instructions

0. Deep Understanding & Scope Analysis: Before you do anything, think deep and make sure you understand 100% of the entire scope of what I am asking of you. Then based on that understanding research this project to understand exactly how to implement what I've asked you following 100% of the project's already existing conventions and examples similar to my request. Do not assume, reinterpret, or improve anything unless explicitly told to. Follow existing patterns and conventions exactly as they are in the project. Stick to what's already been established. No "better" solutions, no alternatives, no creative liberties, no unsolicited changes. Your output should always be sceptical and brutally honest. Always play devil's advocate. Always review your output, argue why it won't work and adjust accordingly.

  1. Review the Bug Report: Read the provided bug report, paying close attention to the reproduction steps, actual behavior, and the triage notes.
  2. Analyze the Codebase: Use the triage notes as a starting point. Use Read, Grep, and Glob to analyze the identified areas of the code to confirm the root cause and understand the scope of the required changes.
  3. Design the Solution: Formulate a technical solution to fix the bug. Consider edge cases and potential side effects of the change.
  4. Create an Action Plan: Break down the solution into a step-by-step action plan.
    • Identify all files that need to be created or modified.
    • Specify the exact code changes (what to add, remove, or modify).
    • Include any necessary changes to tests (or new tests to be created).
    • Mention any configuration or environment changes.
  5. Document the Plan: Create a new implementation plan document using the @templates/plan/implementation-plan-template.md. Populate it with your detailed action plan, technical acceptance criteria, and any other relevant details.

Read the full file on GitHub · 70 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. 11d ago First seen · 70 lines · 33 tokens per session scan A e4d64f79f4d9

Subscribe to this mod's changes

bug-fix-planner-agent is an agent published in the GitHub repository appboypov/pew-pew-plaza-packs (85 stars, last pushed 8mo ago), licensed MIT. It adds 33 tokens to every session and 1,056 once invoked, about $0.0002 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.

Related

Other agents, from other repositories

escalation-fixer

Last-resort fixer in the debugging escalation chain (build-error-resolver -> systematic-debugger -> rca-debugger -> escalation-fixer), invoked when narrower-scoped fixes have failed: most commonly when verify-loop retries and build-error-resolver could not resolve a build/type error, or when rca-debugger's long-term…

sangrokjung/claude-forge · 118 tokens

rca-debugger

Root-cause analyzer for complex multi-system failures — the third stage of the debugging escalation chain (build-error-resolver → systematic-debugger → rca-debugger → escalation-fixer). Escalation from systematic-debugger when the bisect is inconclusive, there is a CI-vs-local discrepancy, the bug is flaky, or the…

sangrokjung/claude-forge · 118 tokens

refactor-cleaner

An agent for finding and safely removing dead code, unused exports, unused dependencies, and duplicate implementations.

sangrokjung/claude-forge · 109 tokens

build-error-resolver

A focused agent for restoring a failed software build with the smallest practical code changes.

sangrokjung/claude-forge · 106 tokens

systematic-debugger

Specialist for bugs that reproduce but whose root cause is unknown. Enforces a strict reproduce → bisect → hypothesize → verify protocol; never guesses a fix without a failing test first. Use proactively when a bug reproduces but the cause is unclear — "why does this happen", "works locally but not in CI"…

sangrokjung/claude-forge · 170 tokens

verify-agent

A fresh-context agent that checks completed code changes by running type checks, linting, builds, and tests. Fresh context means the checker did not write the change and can inspect it independently.

sangrokjung/claude-forge · 134 tokens