Borrowing it
Nothing to install: this file belongs to 0xku/kon. 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/0xku/kon/main/AGENTS.mdgit clone --depth 1 https://github.com/0xku/konWrote 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/0xku/kon/agents-md)<a href="https://agentmods.dev/instructions/0xku/kon/agents-md"><img src="https://agentmods.dev/badge/instructions/0xku/kon/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/0xku/kon/agents-md"><img src="https://agentmods.dev/badge/instructions/0xku/kon/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 | $0.00305 | $0.00305 |
| Opus 5.5 | $0.00122 | $0.00122 |
| Sonnet 5.5 | $0.00061 | $0.00061 |
| Haiku 4.5 | $0.00030 | $0.00030 |
Grade A, and why
kon 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 2mo 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.
What it actually says
Agent Guidelines
Code Style
- Don't add trivial docstrings. Only add docstrings when explaining complex functionality.
- This project uses
uv. Runuv run ruff format .after editing or creating any files. - If generating and running a Python script, use
uv run pythoninstead ofpython.
Testing
- Use
uv run python -m pytestfor testing in general; after edits/writes - If the user asks for e2e tests then run the kon-tmux e2e test if available
Skills
- Kon supports registering a skill as a slash command by setting
register_cmd: truein the SKILL.md frontmatter. If a user asks for a "registered" skill, include this field.
Committing code
- If the user tells you to commit code, look at all the changes and create multiple commits if needed based on logical groupings
- Follow commit message conventions:
docs:,feat:,fix:,build:, etc. for the commit prefix
Pushing
- If the user asks you to push code, run these first before doing so:
uv run ruff format .,uv run ruff check .,uv run python -m pyright .anduv run python -m pytestin parallel (same tool call) - Only if these all pass without issues should you push otherwise report the warnings/errors back to user and ask for next steps
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.
- 2mo ago First seen · 26 lines · 305 tokens per session scan A 55ac49e8d82d
kon AGENTS.md is an instructions file published in the GitHub repository 0xku/kon (356 stars, last pushed 26d ago), licensed MIT. It adds 305 tokens to every session, about $0.0012 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.
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