Borrowing it
Nothing to install: this file belongs to existential-birds/amelia. 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/existential-birds/amelia/main/AGENTS.mdgit clone --depth 1 https://github.com/existential-birds/ameliaWrote 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/existential-birds/amelia/agents-md)<a href="https://agentmods.dev/instructions/existential-birds/amelia/agents-md"><img src="https://agentmods.dev/badge/instructions/existential-birds/amelia/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/existential-birds/amelia/agents-md"><img src="https://agentmods.dev/badge/instructions/existential-birds/amelia/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 | $0.00573 | $0.00573 |
| Opus 5.5 | $0.00229 | $0.00229 |
| Sonnet 5.5 | $0.00115 | $0.00115 |
| Haiku 4.5 | $0.00057 | $0.00057 |
Grade A, and why
amelia 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 — 35 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
- Source lives in
amelia/(agents, drivers, trackers, CLI entry inmain.py; shared utils incore/). - Tests mirror modules in
tests/(unit/,integration/,e2e/,perf/). - Docs and design notes:
docs/andspecs/; top-level configs:data-model.md,pyproject.toml. Runtime config in~/.amelia/amelia.db.
Build, Test, and Development Commands
- Install deps:
uv sync(usespyproject.toml/uv.lock). - Run CLI locally:
uv run amelia --helporuv run amelia start PROJ-123 --profile dev. - Lint:
uv run ruff check .; format (if needed):uv run ruff format .. - Type check:
uv run mypy .(strict). - Tests: fast loop
uv run pytest tests/unit; full suiteuv run pytest; scope with-k "pattern".
Coding Style & Naming Conventions
- Python 3.12; prefer full type hints and dataclasses/TypedDicts where appropriate.
- Line length 100; avoid disabling
E501unless unavoidable. - Imports follow Ruff isort order: future, stdlib, third-party, first-party (
amelia), local. - Naming: modules/functions snake_case; classes PascalCase; constants UPPER_SNAKE.
Testing Guidelines
- Framework: pytest (
asyncio_mode = auto); mark async tests with@pytest.mark.asyncio. - Name tests
test_<behavior>_<condition>and place next to the code path (e.g.,amelia/core/state.py→tests/unit/core/test_state.py). - Add unit coverage for new logic; include integration/e2e when touching workflows or drivers.
Commit & Pull Request Guidelines
- Commits: concise imperative subject (e.g.,
Add driver timeout handling). - Before PR: run
uv run ruff check .,uv run mypy ., and relevantuv run pytestscope; note expected failures. - PRs: state problem, approach, tests executed; link issue/ticket and include screenshots if UX-facing (CLI output acceptable).
Security & Configuration Tips
- Repository runs locally; keep secrets out of code and logs. Use env vars (e.g.,
OPENROUTER_API_KEY) for secrets. - Validate driver/tracker inputs at boundaries; avoid writing tokens to logs or files.
- Treat
data-model.mdand config files as source of truth; update docs when interfaces change.
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 First seen · 35 lines · 573 tokens per session scan A 07dd31d0b468
amelia AGENTS.md is an instructions file published in the GitHub repository existential-birds/amelia (21 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 573 tokens to every session, about $0.0023 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.
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).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.