Borrowing it
Nothing to install: this file belongs to wr/featherframe. 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/wr/featherframe/main/AGENTS.mdgit clone --depth 1 https://github.com/wr/featherframeWrote 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/wr/featherframe/agents-md)<a href="https://agentmods.dev/instructions/wr/featherframe/agents-md"><img src="https://agentmods.dev/badge/instructions/wr/featherframe/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/wr/featherframe/agents-md"><img src="https://agentmods.dev/badge/instructions/wr/featherframe/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 | $0.04315 | $0.04315 |
| Opus 5.5 | $0.01726 | $0.01726 |
| Sonnet 5.5 | $0.00863 | $0.00863 |
| Haiku 4.5 | $0.00432 | $0.00432 |
Grade A, and why
featherframe 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 7d 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 — 299 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Guidance for coding agents working in this repository. Claude Code reads it
through CLAUDE.md; Codex reads it directly.
Source of truth
- GitHub: github.com/wr/featherframe
- Linear project: Featherframe (id: cb3f0377-9778-49b2-a57f-e9f39cfb3de5), Personal team (W)
- Branch prefix: wells/
- PR mode: ready
Writing
Read docs/STYLE.md before writing anything a person reads: webapp copy,
the frame's screens, the README, the wiki, the marketing page, commits, PRs,
Linear, reports. Use its lexicon. Write every user-facing string yourself,
verbatim, in any subagent brief. server/scripts/check_copy.py checks the
mechanical rules (make test runs it on the webapp; pass --wiki DIR before
pushing the wiki).
Link owners to help through featherframe.app/help/<topic>
(site/src/help.json), never to the wiki directly.
What this is
Featherframe shows the birds a BirdNET station hears as illustrations from Audubon's and Gould's books, on an e-paper frame. A detector (BirdNET-Pi, BirdNET-Go, or a BirdWeather station) names a species; the server finds its plate, composes a sheet, and finishes it for every frame that shows it; each frame fetches its own bytes.
server/: Python/Starlette. Owns all logic and all image processing. Runs self-hosted (on the BirdNET device as a systemd service in its own venv, or in Docker on a NAS) and, unchanged, as Featherframe Cloud's per-household Container.firmware/: ESP32-S3 (PlatformIO). A deliberately simple client that fetches a pre-packed framebuffer and pushes it to the panel.hosted/: Featherframe Cloud on Cloudflare: a Worker, a Durable Object per household (its "front door"), the server in a Container, D1 and R2.site/: featherframe.app, the marketing page and the/help/<topic>links.flasher/: the USB web flasher, published to GitHub Pages on a release.
Two kits run the firmware: the EE03 (Seeed XIAO ePaper Kit, 10.3", 1404×1872, 16-level gray, IT8951) and the EE02 (13.3" E Ink Spectra 6, 1200×1600, six inks, ~15 s full refresh, no partial refresh). A TRMNL, a Kobo or Kindle, and a tablet's browser can be frames too. The wiki (github.com/wr/featherframe/wiki) has the hardware spec, wiring, battery numbers and the guide to porting another panel.
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.
- 7d ago Changed · -807 lines · -16,989 tokens per session ca3b995cbb92
- 18d ago Changed · +27 lines · +509 tokens per session 235db71c6423
- 19d ago Changed · +6 lines · +142 tokens per session ed1be79d7dd7
- 25d ago Changed · +73 lines · +1,370 tokens per session c5631c866e7f
- 28d ago Changed d801b6288682
- 1mo ago Changed · +9 lines · +187 tokens per session 23055c5f5d4b
- 1mo ago Changed · +30 lines · +589 tokens per session d2ffa18e9f88
- 1mo ago First seen · 961 lines · 18,507 tokens per session scan A 11cfe88a2975
featherframe AGENTS.md is an instructions file published in the GitHub repository wr/featherframe (26 stars, last pushed 8d ago), licensed Apache-2.0. It adds 4,315 tokens to every session, about $0.0173 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 2026-10-05.
featherframe AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| featherframe AGENTS.mdwr/featherframe | Instructions file | 26 | 8d ago | Apache-2.0 | A | 4,315 | 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 | yesterday | 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 |