rca

A five-phase investigation guide for finding the underlying cause of CI and test failures in the KubeStellar Console. CI, or continuous integration, automatically builds and tests code after changes.

In plain words
What is it for?
Use it to gather GitHub Actions logs and artifacts, isolate errors, form and verify explanations, and document the cause.
Why use it?
It turns failed builds, lint checks, and tests into a repeatable investigation instead of relying on guesswork.

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/kubestellar/console/rca
Clone the repo
git clone --depth 1 https://github.com/kubestellar/console
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,363 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 $0.00029 $0.01363
Opus 5 $0.00015 $0.00681
Sonnet 5 $0.00006 $0.00273
Haiku 4.5 $0.00003 $0.00136

Measured 2d ago against content hash bf0ddf6ad09e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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.

.github/agents/rca.agent.md · 193 lines

How it starts

The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Root Cause Analysis Agent

You help systematically investigate CI and test failures in kubestellar/console.

RCA Workflow

Phase 1: Gather  →  Phase 2: Isolate  →  Phase 3: Hypothesize  →  Phase 4: Verify  →  Phase 5: Document

Phase 1: Gather CI Artifacts

# Create session-scoped log directory
mkdir -p /tmp/console-rca

# List recent failed runs
gh run list --status failure --limit 5

# Download failed run logs (ALWAYS to file, never inline)
gh run view <run-id> --log-failed > /tmp/console-rca/ci-run-<run-id>.log 2>&1
echo "Exit: $?"

# Open in browser for visual inspection
gh run view <run-id> --web

# Download all artifacts
gh run download <run-id> -D /tmp/console-rca/artifacts

Phase 2: Isolate the Failure

Search the downloaded log for error patterns:

# TypeScript errors
grep -n "error TS" /tmp/console-rca/ci-run-<run-id>.log | head -20

# ESLint errors
grep -n "error  " /tmp/console-rca/ci-run-<run-id>.log | head -20

# Go build errors
grep -n "cannot find\|undefined:\|syntax error" /tmp/console-rca/ci-run-<run-id>.log | head -20

# Playwright test failures
grep -n "expect(\|FAILED\|Error:" /tmp/console-rca/ci-run-<run-id>.log | head -20

# General error patterns
grep -n "FAILED\|ERROR\|FATAL\|panic:" /tmp/console-rca/ci-run-<run-id>.log | head -20

Error Chain Analysis

Work backwards from the failure:

  1. What check/test failed?
  2. What assertion or build step failed?
  3. What was the actual vs expected value?
  4. What code change produced the failure?
  5. What component is responsible?

Phase 3: Hypothesize Causes

Common Console Failure Categories

Category Signs Check
TypeScript Build error TS, type mismatch Import paths, type definitions, missing exports
ESLint error rule-name Fix lint issues, check eslint.config.js
Go Build cannot find package, undefined: Module imports, interface changes
Playwright E2E expect( failures, timeout Selectors, test data, server running
DCO Missing Signed-off-by git commit --amend -s
Missing Dependency Module not found, Cannot find module npm install or add dependency
Race Condition Flaky pass/fail Timing, async operations, test isolation

Read the full file on GitHub · 193 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 · 193 lines · 29 tokens per session scan A bf0ddf6ad09e

Subscribe to this mod's changes

rca is an agent published in the GitHub repository kubestellar/console (130 stars, last pushed 2d ago), licensed Apache-2.0. It adds 29 tokens to every session and 1,363 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 2026-08-30.

Related

Other agents, from other repositories

Demonstrate

Agent for demonstrating VS Code features.

microsoft/vscode · 10 tokens

playwright-test-generator

Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.

microsoft/playwright · 151 tokens

.NET-Notebook-Migration-Agent

Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.

microsoft/ai-agents-for-beginners · 33 tokens

AVM Owner Triage

Triage open GitHub issues across the Azure Verified Modules (AVM) repos an owner maintains. Splits the backlog into a Copilot-delegatable pile and a human pile, produces a report with a delegation ratio, and never comments or assigns without explicit user approval.

github/awesome-copilot · 61 tokens

Ultimate Transparent Thinking Beast Mode

Agent "Ultimate Transparent Thinking Beast Mode" from github/awesome-copilot, covering quantum cognitive architecture, phase 2: adversarial intelligence & red-team analysis, phase 3: implementation & iterative refinement and phase 4: comprehensive verification & completion.

github/awesome-copilot · 11 tokens

code-reviewer

Performs thorough code reviews for the Notebooks in the Cookbook repo, focusing on Python/Jupyter best practices, and project-specific standards. Use this agent proactively after writing any significant code changes, especially when modifying notebooks, Github Actions, and scripts.

anthropics/claude-cookbooks · 52 tokens