bug-rca

bug-rca is a command for Claude Code from ParkerRex/tec-claude-code-agents. It costs 14 tokens per session (809 once invoked), scanned A, original, no licence file.

A command for investigating the underlying cause of an incident or system failure.

In plain words
What is it for?
Use it to examine incidents, trace failures, and document root-cause findings.
Why use it?
It helps separate the original cause from the symptoms that appeared during the failure.

Command for Claude Code

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 commands/parkerrex/tec-claude-code-agents/bug-rca
Clone the repo
git clone --depth 1 https://github.com/ParkerRex/tec-claude-code-agents

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-rca

README.md
[![agentmods](https://agentmods.dev/badge/commands/parkerrex/tec-claude-code-agents/bug-rca.svg)](https://agentmods.dev/commands/parkerrex/tec-claude-code-agents/bug-rca)
Your own site
<a href="https://agentmods.dev/commands/parkerrex/tec-claude-code-agents/bug-rca"><img src="https://agentmods.dev/badge/commands/parkerrex/tec-claude-code-agents/bug-rca.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 809 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00014 $0.00809
Opus 5 $0.00007 $0.00404
Sonnet 5 $0.00003 $0.00162
Haiku 4.5 $0.00001 $0.00081

Measured 4d ago against content hash 13a952e63115, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bug-rca 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 4d 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/commands/bug-rca.md · 75 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 4d ago First seen · 75 lines · 14 tokens per session scan A 13a952e63115

Subscribe to this mod's changes

bug-rca is a command published in the GitHub repository ParkerRex/tec-claude-code-agents (5 stars, last pushed 11mo ago), with no licence file. It adds 14 tokens to every session and 809 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 2026-08-31.