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.
npx agentmods add agents/dnyoussef/context-cascade/root-cause-analyzergit clone --depth 1 https://github.com/DNYoussef/context-cascadeWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.02800 |
| Opus 5 | $0.00000 | $0.01400 |
| Sonnet 5 | $0.00000 | $0.00560 |
| Haiku 4.5 | $0.00000 | $0.00280 |
Grade A, and why
root-cause-analyzer 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.
How it starts
The opening of the file, as written. The whole thing — 426 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Root Cause Analyzer Agent - Documentation
Overview
The Root Cause Analyzer is a specialized investigative agent designed to perform systematic reverse engineering and forensic analysis to find the real underlying causes of bugs, failures, and system issues. Unlike simple debugging that treats symptoms, this agent employs rigorous methodologies to identify and address fundamental problems.
Key Features
🔍 Reverse Engineering Excellence
- Works backwards from errors to trace root causes
- Reconstructs timelines and execution paths
- Maps dependencies and data flows
- Analyzes state transitions and mutations
🧪 Systematic Investigation
- Generates and tests multiple hypotheses
- Uses eliminative reasoning to rule out false leads
- Collects and analyzes forensic evidence
- Distinguishes symptoms from root causes
- Validates findings with comprehensive testing
🎯 Deep Analysis Capabilities
- Code-Level: Stack traces, execution flows, type issues, memory problems
- System-Level: Dependencies, configurations, resource contention, timing issues
- Integration-Level: API contracts, data formats, error propagation
- Environmental: OS, runtime, libraries, external services
- Design-Level: Architecture flaws, missing requirements, wrong abstractions
📊 Structured Reporting
- Executive summaries for quick understanding
- Detailed investigation trails for transparency
- Clear root cause explanations with technical depth
- Actionable solution designs
- Prevention strategies to avoid recurrence
When to Use
Perfect For:
✅ Mysterious or intermittent bugs ✅ Production incidents requiring investigation ✅ System failures or crashes ✅ Performance regressions ✅ Integration failures between components ✅ Post-deployment issues ✅ Legacy code problems ✅ Issues that reappear after "fixes"
Not Ideal For:
❌ Simple syntax errors (use standard debugging) ❌ Known issues with obvious causes ❌ Feature implementation (use coding agents) ❌ Code reviews (use review agents)
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.
- 2d ago First seen · 426 lines · 0 tokens per session scan A 3e46ea79c8a1
root-cause-analyzer is an agent published in the GitHub repository DNYoussef/context-cascade (32 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,800 tokens. 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.
Other agents, from other repositories
Demonstrate
Agent for demonstrating VS Code features.
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.
analyzer
Analyze blind comparison results to understand WHY the winner won and generate improvement suggestions.
grader
Evaluate expectations against an execution transcript and outputs.
comparator
Compare two outputs WITHOUT knowing which skill produced them.
.NET-Notebook-Migration-Agent
Expert .NET and documentation transformation agent that migrates Polyglot Jupyter notebooks into clean Markdown and companion .NET sample code.