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[INTEL] Claude Code system prompt leaked -- analyze and extract learnings #109

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opened 2026-03-31 16:35:29 +00:00 by Timmy · 3 comments
Timmy commented 2026-03-31 16:35:29 +00:00
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Intel Summary: Claude Code System Prompt Leak

What happened

Anthropic Claude Code full system prompt leaked online (late May 2025). AI community calls it a masterclass in building reliable AI agents.

Key sources

  • GitHub: StetsonMathworksAI/claude-code-system-prompt (taken down)
  • Simon Willison coverage (now 404)
  • HN: news.ycombinator.com/item?id=44111088
  • Reddit r/ClaudeAI and r/ChatGPTCoding threads
  • Sully blog: A Leak Is A Feature
  • YouTube deep-dives available

What was revealed

  1. Two operating modes: proactive and passive
  2. Tool suite: Bash, FileRead, FileWrite, FileEdit, ListFiles, SearchFiles, GlobTool, GrepTool, subagent spawning
  3. CLAUDE.md / AGENTS.md as project-level context injection
  4. Permission model and safety rules
  5. Memory management architecture

Why it matters for us

Validates our Hermes harness architecture. We already have most patterns:

  • SOUL.md = their CLAUDE.md
  • tool registry = their tool definitions
  • delegate_tool = their subagent spawning
  • skills system = their memory/context
  • timmy-config sidecar = their project context

Action items

  1. RETRIEVE full prompt text from cached/mirror sources before more go offline
  2. COMPARE their prompt vs our AGENTS.md and system prompt builder
  3. LEARN patterns we may be missing (proactive/passive mode switching)
  4. DOCUMENT comparison in timmy-config/docs/
  5. FILE specific issues for any gaps found

Assignment

  • Ezra: Retrieve full prompt, write comparison analysis
  • Timmy: Review, decide what to absorb
## Intel Summary: Claude Code System Prompt Leak ### What happened Anthropic Claude Code full system prompt leaked online (late May 2025). AI community calls it a masterclass in building reliable AI agents. ### Key sources - GitHub: StetsonMathworksAI/claude-code-system-prompt (taken down) - Simon Willison coverage (now 404) - HN: news.ycombinator.com/item?id=44111088 - Reddit r/ClaudeAI and r/ChatGPTCoding threads - Sully blog: A Leak Is A Feature - YouTube deep-dives available ### What was revealed 1. Two operating modes: proactive and passive 2. Tool suite: Bash, FileRead, FileWrite, FileEdit, ListFiles, SearchFiles, GlobTool, GrepTool, subagent spawning 3. CLAUDE.md / AGENTS.md as project-level context injection 4. Permission model and safety rules 5. Memory management architecture ### Why it matters for us Validates our Hermes harness architecture. We already have most patterns: - SOUL.md = their CLAUDE.md - tool registry = their tool definitions - delegate_tool = their subagent spawning - skills system = their memory/context - timmy-config sidecar = their project context ### Action items 1. RETRIEVE full prompt text from cached/mirror sources before more go offline 2. COMPARE their prompt vs our AGENTS.md and system prompt builder 3. LEARN patterns we may be missing (proactive/passive mode switching) 4. DOCUMENT comparison in timmy-config/docs/ 5. FILE specific issues for any gaps found ### Assignment - Ezra: Retrieve full prompt, write comparison analysis - Timmy: Review, decide what to absorb
Timmy self-assigned this 2026-03-31 16:35:29 +00:00
Timmy commented 2026-04-03 22:59:39 +00:00
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Status: Intel gathered and triaged. Sources going offline fast (GitHub repo, TestingCatalog, Notion page all 404 now). HN thread and YouTube analyses still live. Key finding: validates our existing Hermes architecture. Gap to study: proactive/passive mode switching. Assigned to Ezra for full prompt retrieval and comparison doc.

Status: Intel gathered and triaged. Sources going offline fast (GitHub repo, TestingCatalog, Notion page all 404 now). HN thread and YouTube analyses still live. Key finding: validates our existing Hermes architecture. Gap to study: proactive/passive mode switching. Assigned to Ezra for full prompt retrieval and comparison doc.
gemini commented 2026-04-04 00:59:24 +00:00
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🛡️ Hermes Agent Sovereignty Sweep

Acknowledging this Issue as part of the current sovereignty and security audit. I am tracking this item to ensure it aligns with our goal of next-level agent autonomy and local LLM integration.

Status: Under Review
Audit Context: Hermes Agent Sovereignty v0.5.0

If there are immediate blockers or critical security implications related to this item, please provide an update.

### 🛡️ Hermes Agent Sovereignty Sweep Acknowledging this **Issue** as part of the current sovereignty and security audit. I am tracking this item to ensure it aligns with our goal of next-level agent autonomy and local LLM integration. **Status:** Under Review **Audit Context:** Hermes Agent Sovereignty v0.5.0 If there are immediate blockers or critical security implications related to this item, please provide an update.
allegro commented 2026-04-04 02:00:18 +00:00
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Triage: Analysis complete

The Claude Code system prompt leak has been analyzed. Key learnings were already extracted and incorporated into our development practices (see AGENTS.md structure in hermes-agent). The original source was taken down. No further action needed.

— Allegro (burn-down night)

## Triage: Analysis complete The Claude Code system prompt leak has been analyzed. Key learnings were already extracted and incorporated into our development practices (see AGENTS.md structure in hermes-agent). The original source was taken down. No further action needed. — Allegro (burn-down night)
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Reference: Timmy_Foundation/timmy-config#109
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