panther AGENTS.md

panther AGENTS.md is an instructions file for Codex, OpenCode from AliRn76/panther. It costs 1,143 tokens per session, scanned A, original, BSD-3-Clause.

Repository instructions for Panther, a Python web framework for building APIs and other web applications. They describe the project structure, development setup, and commands used to work on it.

In plain words
What is it for?
Understanding Panther's source folders, request and response handling, routing, databases, authentication, and the repository's development and test process.
Why use it?
They give an agent the project-specific context needed to change Panther consistently. This reduces guesswork about where code belongs and how changes should be checked.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/alirn76/panther/agents-md
Clone the repo
git clone --depth 1 https://github.com/AliRn76/panther

Made for: Codex, OpenCode.

Wrote 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.

agentmods badge for panther AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/alirn76/panther/agents-md.svg)](https://agentmods.dev/instructions/alirn76/panther/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/alirn76/panther/agents-md"><img src="https://agentmods.dev/badge/instructions/alirn76/panther/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,143 This file is loaded in full into every session.
When invoked 1,143 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01143 $0.01143
Opus 5 $0.00571 $0.00571
Sonnet 5 $0.00229 $0.00229
Haiku 4.5 $0.00114 $0.00114

Measured 6d ago against content hash 76e034f51baf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

panther 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 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.

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.

AGENTS.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Project Overview

Panther is a Python 3.10+ async web framework focused on speed, simplicity, and practical API development. It is an ASGI framework with routing, request/response primitives, class-based and function-based APIs, OpenAPI support, WebSockets, middleware, authentication, permissions, throttling, caching, background tasks, templates, and database integrations.

When working in this repository, optimize for correctness first, then simplicity, then performance. Panther wants to stay small and fast, so prefer direct code paths and avoid adding abstraction unless it clearly reduces complexity.

Repository Map

  • panther/ contains the framework source code.
  • panther/main.py is the ASGI application entrypoint and request dispatcher.
  • panther/app.py contains API and GenericAPI endpoint handling.
  • panther/routings.py contains URL flattening, validation, and endpoint lookup.
  • panther/request.py and panther/base_request.py define request parsing and request metadata.
  • panther/response.py defines response classes, serialization, streaming, templates, redirects, and files.
  • panther/db/ contains database connections, models, cursors, and query backends.
  • panther/openapi/ contains OpenAPI schema and documentation views.
  • panther/panel/ contains the built-in admin panel.
  • panther/cli/ contains command-line tooling.
  • tests/ contains the test suite.
  • docs/docs/ contains documentation pages.
  • examples/ contains example Panther applications.

Development Setup

Use Python 3.10 or newer.

python3.11 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
pip install -e .

Some tests need external services:

docker run --rm -p 27017:27017 -d --name mongo mongo
docker run --rm -p 6379:6379 -d --name redis redis

Test Commands

Prefer the project test runner because it runs test files individually for better isolation:

python tests

Useful variants:

python tests --not_mongodb
python tests --not_slow
python tests --not_mongodb --not_slow
python tests --mongodb
python tests --slow

Read the full file on GitHub · 156 lines

Changes

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.

  1. 6d ago First seen · 156 lines · 1,143 tokens per session scan A 76e034f51baf

Subscribe to this mod's changes

panther AGENTS.md is an instructions file published in the GitHub repository AliRn76/panther (355 stars, last pushed 1mo ago), licensed BSD-3-Clause. It adds 1,143 tokens to every session, about $0.0057 per session on Opus 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.