Borrowing it
Nothing to install: this file belongs to SolidKeyAB/logan. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/SolidKeyAB/logan/main/AGENTS.mdgit clone --depth 1 https://github.com/SolidKeyAB/loganWrote 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/instructions/solidkeyab/logan/agents-md)<a href="https://agentmods.dev/instructions/solidkeyab/logan/agents-md"><img src="https://agentmods.dev/badge/instructions/solidkeyab/logan/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/solidkeyab/logan/agents-md"><img src="https://agentmods.dev/badge/instructions/solidkeyab/logan/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.01303 | $0.01303 |
| Opus 5.5 | $0.00521 | $0.00521 |
| Sonnet 5.5 | $0.00261 | $0.00261 |
| Haiku 4.5 | $0.00130 | $0.00130 |
Grade A, and why
logan AGENTS.md 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 1mo 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 — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
LOGAN Agent Integration
LOGAN supports AI agent integration through its local HTTP API and MCP server. Any agent can connect to analyze logs and chat with the user.
Quick Start
| Your Agent Supports | What to Use | Setup |
|---|---|---|
| MCP (Claude Code, Cursor, Windsurf) | MCP tools | .mcp.json already configured — tools auto-discovered |
| HTTP calls (Copilot, Codex, custom) | REST API polling | Read endpoints below, poll every 2-3s |
| Persistent connections (scripts) | SSE stream | Connect to /api/events for real-time |
Agent-Specific Files
| File | Agent | Description |
|---|---|---|
.mcp.json |
MCP-compatible agents | MCP server config (auto-discovered) |
CLAUDE.md |
Claude Code | Project instructions + MCP tool reference |
.cursorrules |
Cursor | Agent instructions + MCP/HTTP reference |
.github/copilot-instructions.md |
GitHub Copilot | HTTP polling instructions + endpoints |
docs/AGENT_CHAT_GUIDE.md |
All agents | Full integration guide with code examples |
scripts/agent-chat-poll.py |
Any Python agent | Ready-to-run polling chat script |
scripts/agent-chat-sse.py |
Any Python agent | Ready-to-run SSE chat script |
API Reference (http://127.0.0.1:19532)
Chat
| Method | Endpoint | Description |
|---|---|---|
| POST | /api/agent-register | Register as connected: {"name": "MyAgent"} (shows green dot) |
| POST | /api/agent-message | Send message: {"message": "text", "name": "MyAgent"} |
| GET | /api/messages?since=TS | Get messages after timestamp (ms) |
| GET | /api/events?name=Name | SSE stream (real-time, 1 agent max) |
| GET | /api/agent-status | Check if an agent is connected |
Log Analysis
| Method | Endpoint | Description |
|---|---|---|
| GET | /api/status | File info, line count, filter state |
| POST | /api/open-file | Open file: {"filePath": "..."} |
| GET | /api/lines?start=N&count=M | Read lines |
| POST | /api/search | Search: {"pattern": "...", "maxResults": 50} |
| POST | /api/analyze | Full analysis (levels, crashes, components) |
| POST | /api/navigate | Jump to line: {"line": 123} |
| POST | /api/filter | Filter: {"pattern": "ERROR"} |
| POST | /api/clear-filter | Remove filter |
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.
- 1mo ago Changed · +8 lines · +221 tokens per session 95c96e8825bc
- 2mo ago First seen · 93 lines · 1,082 tokens per session scan A 3a91c7ca7ccc
logan AGENTS.md is an instructions file published in the GitHub repository SolidKeyAB/logan (5 stars, last pushed 1mo ago), licensed MIT. It adds 1,303 tokens to every session, about $0.0052 per session on Opus 5.5. 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 2026-08-31.
logan AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| logan AGENTS.mdSolidKeyAB/logan | Instructions file | 5 | 1mo ago | MIT | A | 1,303 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |