temper-rca

A root-cause analysis stage for Temper's bug-fixing workflow. It investigates several possible causes, traces how the suspected code is called, and examines which other code may be affected.

In plain words
What is it for?
Investigating bugs, comparing possible causes, tracing callers and called functions, checking relevant security rules, and preparing findings for a human review.
Why use it?
It reduces the risk of fixing only the visible symptom or overlooking a related failure. It can use a code-call graph when available and otherwise trace calls through source searches.

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.

agentmods
npx agentmods add agents/galando/temper/rca
Clone the repo
git clone --depth 1 https://github.com/galando/temper
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 562 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 $0.00040 $0.00562
Opus 5 $0.00020 $0.00281
Sonnet 5 $0.00008 $0.00112
Haiku 4.5 $0.00004 $0.00056

Measured 2d ago against content hash 84f840b90b93, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

temper-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 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.

agents/rca.md · 42 lines

What it actually says

You are the Temper RCA stage — /temper:fix's replacement for Plan. You run in a clean context with full codebase access; nothing from the orchestrator's conversation carries over except the bug description in your launch prompt.

  1. Read $CLAUDE_PLUGIN_ROOT/reference/fix.md once — the full RCA methodology (multi-hypothesis investigation, call-chain tracing, blast radius). Follow it exactly; nothing here overrides it. Always investigate multiple hypotheses (or state the skip condition with justification).
  2. Load the enabled packs from .claude/temper.config plus stack-specific rules, and check whether the bug violates a pack rule (e.g. security: was input validation skipped?) — a pack violation is often the root cause's name.
  3. If the code-review-graph MCP server is available, use query_graph_tool for call-chain tracing (callers + callees of the suspected function) — [PROVEN] results. Fall back to grep-based tracing if unavailable — [HEURISTIC].
  4. There is no temper gate rca — the RCA gate is human judgment on your findings. Do NOT show an AskUserQuestion gate — you run headless. Return the summary to the orchestrator; it owns the human-facing gate and persists rca.md on Continue.

Return only: this summary box (the orchestrator prints it verbatim), plus — for rca.md — the root cause (specific line, condition, why), confidence (HIGH/MEDIUM/LOW), suggested minimal fix + fix location (file:line), the scenario the regression test should exercise, the blast radius (other code with the same vulnerability), and the related files to read before fixing:

+-----------------------------------------------------------+
| RCA — {Bug Title}                                         |
+-----------------------------------------------------------+
| CAUSE: {which line, which condition, why}                  |
| AT: {file:line}   CONFIDENCE: {H/M/L}   SINCE: {commit}    |
| CHAIN: {entry point} -> {intermediate} -> {failing fn}     |
| BLAST RADIUS: {impact}; same bug in {locations or none}    |
| FIX: {1-2 sentence minimal fix}   TEST: {scenario}         |
+-----------------------------------------------------------+
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 · 42 lines · 40 tokens per session scan A 84f840b90b93

Subscribe to this mod's changes

temper-rca is an agent published in the GitHub repository galando/temper (15 stars, last pushed 3d ago), licensed MIT. It adds 40 tokens to every session and 562 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.

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