Collie is a mobile web interface for monitoring and controlling terminal-based AI agents through Herdr, tmux, or zellij, with access provided over Tailscale. It lets operators check agent sessions, respond to prompts, search output, and perform terminal actions from a phone, including through push notifications and voice or file input.
Borrowing it
Nothing to install: this file belongs to AltanS/collie. 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/AltanS/collie/main/CLAUDE.mdgit clone --depth 1 https://github.com/AltanS/collieWrote 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/altans/collie/claude-md)<a href="https://agentmods.dev/instructions/altans/collie/claude-md"><img src="https://agentmods.dev/badge/instructions/altans/collie/claude-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/altans/collie/claude-md"><img src="https://agentmods.dev/badge/instructions/altans/collie/claude-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 | $0.17945 | $0.17945 |
| Opus 5.5 | $0.07178 | $0.07178 |
| Sonnet 5.5 | $0.03589 | $0.03589 |
| Haiku 4.5 | $0.01794 | $0.01794 |
Grade A, and why
collie CLAUDE.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 today.
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 — 836 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — working agreement for this repo
Collie (repo AltanS/collie) — a phone web UI for the AI agents running in your terminal,
served over Tailscale. A mobile-first PWA (Vite + React + TS + Tailwind v4 + shadcn) plus a Bun/TS
bridge that mirrors ONE multiplexer per install — Herdr, tmux or zellij — letting you monitor and
reply to agents from a phone. Herdr is one adapter among the three, not the product: it is the
default, it is the only one that talks over a Unix socket, and its plugin route stays supported —
plugin id herdr.collie (manifest: herdr-plugin.toml). Orientation:
README.md · ARCHITECTURE.md · the UI's visual
language DESIGN.md · verified API HERDR_API.md ·
decisions .adr/ · adding a harness
HARNESS_CONTRIBUTING.md · adding a multiplexer
MUX_CONTRIBUTING.md.
Decision records — read before reopening a settled question
.adr/ holds the decisions whose reasoning would otherwise live only in a PR thread —
specifically the ones that close off an option someone will reasonably propose again. If you're
about to argue why not rather than how, check there first; if the answer isn't there and the
decision is that shape, add one (numbering + format: .adr/README.md).
Rules elsewhere in this file stay short and normative and link to the ADR for the argument. Don't restate an ADR's reasoning here, and don't edit a superseded ADR into agreement with the present — mark it superseded and write the next one.
Versioning — MANDATORY
Collie is SemVered, and the version is enforced, so it never silently drifts.
The version lives in three files that must always agree, plus a matching CHANGELOG entry:
herdr-plugin.toml (canonical — Herdr reads it) · package.json · web/package.json ·
newest numbered ## [x.y.z] heading in CHANGELOG.md. ## [Unreleased] is not numbered and is
not part of that agreement.
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.
- today Changed · +2 lines · +65 tokens per session 3bb2a0c075a6
- 2d ago Changed · +4 lines · +110 tokens per session 6e9a4c685b55
- 5d ago Changed · +2 tokens per session f3edd1b12f11
- 6d ago Changed · +14 lines · +337 tokens per session cbb610084939
- 7d ago Changed · +1 lines · +30 tokens per session 9642425c6a88
- 8d ago Changed · +9 lines · +233 tokens per session b82388d4edfc
- 9d ago Changed · +2 tokens per session 8aeb676c04fb
- 13d ago Changed 291dce80aa47
- 14d ago Changed · -2 tokens per session 0b98c87f54e2
- 17d ago First seen · 806 lines · 17,168 tokens per session scan A 7bbf47eaa936
collie CLAUDE.md is an instructions file published in the GitHub repository AltanS/collie (1,589 stars, last pushed yesterday), licensed MIT. It adds 17,945 tokens to every session, about $0.0718 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 2026-08-30.
collie CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| collie CLAUDE.mdAltanS/collie | Instructions file | 1.6k | yesterday | MIT | A | 17,945 | Claude Code |
| 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 |