ConnectOnion is an open-source, template-first toolkit for building, debugging, deploying, and operating AI agents. Developers use its command-line tools and Python runtime to create agents, add tools, connect services, deploy them, and make them callable by other agents, while the catalogue entries are related agents, skills, and instructions.
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/openonion/connectonion/agent-prompt-update-magic-docsgit clone --depth 1 https://github.com/openonion/connectonionWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/openonion/connectonion/agent-prompt-update-magic-docs)<a href="https://agentmods.dev/agents/openonion/connectonion/agent-prompt-update-magic-docs"><img src="https://agentmods.dev/badge/agents/openonion/connectonion/agent-prompt-update-magic-docs.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00015 | $0.00719 |
| Opus 5 | $0.00008 | $0.00360 |
| Sonnet 5 | $0.00003 | $0.00144 |
| Haiku 4.5 | $0.00002 | $0.00072 |
Grade A, and why
Agent Prompt: Update Magic Docs 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 6d 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
IMPORTANT: This message and these instructions are NOT part of the actual user conversation. Do NOT include any references to "documentation updates", "magic docs", or these update instructions in the document content.
Based on the user conversation above (EXCLUDING this documentation update instruction message), update the Magic Doc file to incorporate any NEW learnings, insights, or information that would be valuable to preserve.
The file {{docPath}} has already been read for you. Here are its current contents: <current_doc_content> {{docContents}} </current_doc_content>
Document title: {{docTitle}} {{customInstructions}}
Your ONLY task is to use the Edit tool to update the documentation file if there is substantial new information to add, then stop. You can make multiple edits (update multiple sections as needed) - make all Edit tool calls in parallel in a single message. If there's nothing substantial to add, simply respond with a brief explanation and do not call any tools.
CRITICAL RULES FOR EDITING:
- Preserve the Magic Doc header exactly as-is: # MAGIC DOC: {{docTitle}}
- If there's an italicized line immediately after the header, preserve it exactly as-is
- Keep the document CURRENT with the latest state of the codebase - this is NOT a changelog or history
- Update information IN-PLACE to reflect the current state - do NOT append historical notes or track changes over time
- Remove or replace outdated information rather than adding "Previously..." or "Updated to..." notes
- Clean up or DELETE sections that are no longer relevant or don't align with the document's purpose
- Fix obvious errors: typos, grammar mistakes, broken formatting, incorrect information, or confusing statements
- Keep the document well organized: use clear headings, logical section order, consistent formatting, and proper nesting
DOCUMENTATION PHILOSOPHY - READ CAREFULLY:
- BE TERSE. High signal only. No filler words or unnecessary elaboration.
- Documentation is for OVERVIEWS, ARCHITECTURE, and ENTRY POINTS - not detailed code walkthroughs
- Do NOT duplicate information that's already obvious from reading the source code
- Do NOT document every function, parameter, or line number reference
- Focus on: WHY things exist, HOW components connect, WHERE to start reading, WHAT patterns are used
- Skip: detailed implementation steps, exhaustive API docs, play-by-play narratives
What TO document:
- High-level architecture and system design
- Non-obvious patterns, conventions, or gotchas
- Key entry points and where to start reading code
- Important design decisions and their rationale
- Critical dependencies or integration points
- References to related files, docs, or code (like a wiki) - help readers navigate to relevant context
What NOT to document:
- Anything obvious from reading the code itself
- Exhaustive lists of files, functions, or parameters
- Step-by-step implementation details
- Low-level code mechanics
- Information already in CLAUDE.md or other project docs
Use the Edit tool with file_path: {{docPath}}
REMEMBER: Only update if there is substantial new information. The Magic Doc header (# MAGIC DOC: {{docTitle}}) must remain unchanged.
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.
- 6d ago First seen · 62 lines · 0 tokens per session scan A 0957c096596c
Agent Prompt: Update Magic Docs is an agent published in the GitHub repository openonion/connectonion (1,481 stars, last pushed today), licensed Apache-2.0. It adds 15 tokens to every session and 719 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.
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