Borrowing it
Nothing to install: this file belongs to parawanderer/OpenTagViewer. 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/parawanderer/OpenTagViewer/main/AGENTS.mdgit clone --depth 1 https://github.com/parawanderer/OpenTagViewerWrote 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/parawanderer/opentagviewer/agents-md)<a href="https://agentmods.dev/instructions/parawanderer/opentagviewer/agents-md"><img src="https://agentmods.dev/badge/instructions/parawanderer/opentagviewer/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/parawanderer/opentagviewer/agents-md"><img src="https://agentmods.dev/badge/instructions/parawanderer/opentagviewer/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 | $0.15717 | $0.15717 |
| Opus 5.5 | $0.06287 | $0.06287 |
| Sonnet 5.5 | $0.03143 | $0.03143 |
| Haiku 4.5 | $0.01572 | $0.01572 |
Grade B, and why
OpenTagViewer AGENTS.md scanned grade B with 2 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
curl -so /dev/null -w '%{http_code}\n' -X POST --data-binary t \ Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -so /dev/null -w '%{http_code}\n' -X POST --data-binary t \ How it starts
The opening of the file, as written. The whole thing — 1,081 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Rules for agents working on OpenTagViewer. Written for automated contributors, but the constraints apply to anyone.
This file is owned and maintained by agents, and keeping it current is part of the work rather than a favour to whoever comes next. @parawanderer asked for that and has not read it since. No human reviews what lands here, so the agent writing a change is the only check on it.
What that means in practice:
- If you learned something the hard way, write it down in the same change that taught you. The next agent starts here, and anything left out is an afternoon they pay for and you did not.
- The reason travels with the rule. An instruction with no reasoning attached is one a later agent deletes the first time it looks inconvenient. That is why the entries here argue.
- Earn it. Nobody is filtering this, so a rule that has not actually cost somebody something does not belong. Rule 10 has the test.
- Do not carry this register outside the repository. It is written for agents who need to be argued out of breaking something. A pull request review, an issue reply, or anything else a person reads is a different job. See rule 17.
What this project is
An Android app that shows Apple AirTag locations without an Apple device. Tags are exported from a Mac once (see the wiki), imported as a zip, and located via Apple's Find My network through FindMy.py.
| Layer | Technology |
|---|---|
| App | Android, Java (not Kotlin), Gradle Kotlin DSL, compileSdk/targetSdk 35, minSdk 24 |
| Apple protocol | Chaquopy — CPython 3.12 embedded, bridged in app/src/main/python/main.py |
| Persistence | Room (opentagviewer-db) |
| Async | RxJava3 through repositories and services |
| Boilerplate | Lombok (@Builder, @Getter on entities) |
| Desktop exporter | python/ — tkinter wizard, PyInstaller |
app/src/main/python/ is packaged into the APK by Chaquopy. Nothing in it may import
Android or Java types — that is what makes it testable on plain CPython.
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 Changed · +8 lines · +171 tokens per session b8920cfb2d24
- 14d ago Changed · +1 lines · +9 tokens per session 9a9f1a835901
- 1mo ago Changed · +46 lines · +997 tokens per session fdcfec84df2f
- 1mo ago Changed · +56 lines · +874 tokens per session 8e273fa65e99
- 1mo ago Changed · +40 lines · +553 tokens per session 8cc80f658219
- 1mo ago Changed · +4 lines · +65 tokens per session 96fbb0014735
- 1mo ago Changed · +58 lines · +951 tokens per session scan A → B 48d6ef32495d
- 1mo ago Changed · +67 lines · +1,051 tokens per session 5cf4b93997e1
- 1mo ago Changed · +28 lines · +401 tokens per session 7f166ad3671f
- 2mo ago First seen · 773 lines · 10,645 tokens per session scan A fab1a2e74cd9
OpenTagViewer AGENTS.md is an instructions file published in the GitHub repository parawanderer/OpenTagViewer (450 stars, last pushed 3d ago), licensed MIT. It adds 15,717 tokens to every session, about $0.0629 per session on Opus 5.5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.