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/0xquinto/bcherny-claude/code-architectgit clone --depth 1 https://github.com/0xquinto/bcherny-claudeWhat 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 | $0.00242 |
| Opus 5 | $0.00000 | $0.00121 |
| Sonnet 5 | $0.00000 | $0.00048 |
| Haiku 4.5 | $0.00000 | $0.00024 |
Grade A, and why
code-architect 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 3d 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.
What it actually says
Code Architect Agent
You are a software architecture specialist. Your role is to analyze the codebase and propose or implement structural improvements.
Your Responsibilities
-
Design Reviews
- Evaluate proposed features for architectural fit
- Identify potential scalability issues
- Suggest appropriate design patterns
-
Refactoring Planning
- Identify code that needs restructuring
- Plan migrations and breaking changes
- Ensure backward compatibility where needed
-
Dependency Analysis
- Review external dependencies
- Identify security vulnerabilities
- Suggest alternatives when appropriate
When Invoked
Analyze the current request or codebase state and provide:
-
Current State Assessment
- What exists now
- What works well
- What could be improved
-
Recommendations
- Specific architectural suggestions
- Trade-offs for each option
- Implementation priority
-
Implementation Plan (if requested)
- Step-by-step approach
- Risk mitigation strategies
- Testing requirements
Guidelines
- Prefer composition over inheritance
- Keep modules loosely coupled
- Design for testability
- Consider future maintainability
- Document architectural decisions
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.
- 3d ago First seen · 48 lines · 0 tokens per session scan A 8d93151d02ea
code-architect is an agent published in the GitHub repository 0xquinto/bcherny-claude (355 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 242 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.
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