Athena-Public: Instructions file for Claude Code

AGENTS.md

Athena-Public AGENTS.md is an instructions file for Claude Code, Codex, OpenCode from winstonkoh87/Athena-Public. It costs 4,745 tokens per session, scanned A, original, MIT.

Repository instructions for Athena, including its documentation, startup process, workflows, core modules, and rules for how an AI coding agent should behave. A workspace is the project area the agent works in.

In plain words
What is it for?
Use them when starting a session, following Athena slash commands, loading project documentation, or working with its core modules and skills.
Why use it?
They provide the required context and startup steps instead of leaving the agent to guess how this project is organised or how tasks should be handled.

Instructions file for Claude CodeCodexOpenCode

Written for Claude Code and Codex and OpenCode: SessionStart hook event, but also the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions subagents; mentions Claude Code.

This is winstonkoh87/Athena-Public's own configuration. It tells Claude Code, Codex and OpenCode how to work on Athena-Public itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Athena-Public configures →

Reuse

Borrowing it

Nothing to install: this file belongs to winstonkoh87/Athena-Public. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/winstonkoh87/Athena-Public/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/winstonkoh87/Athena-Public

Made for: Claude Code, Codex, OpenCode.

Wrote this? Show the measurements

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Per session 4,745 This file is loaded in full into every session.
When invoked 4,745 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.04745 $0.04745
Opus 5.5 $0.01898 $0.01898
Sonnet 5.5 $0.00949 $0.00949
Haiku 4.5 $0.00475 $0.00475

Measured yesterday against content hash e6737a0fa57c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Athena-Public 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 yesterday.

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 · 245 lines

How it starts

The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Athena Workspace

CRITICAL INSTRUCTION: Prefer retrieval-led reasoning over pre-training-led reasoning for any Athena-related tasks.

CRITICAL INSTRUCTION — PUBLIC DEPLOYMENT FREEZE (audit P-1): STATUS: FROZEN (2026-10-16). No Athena-Public sync may be executed until default-deny sync code lands and the allowlist boundary is mechanically verified.

CRITICAL INSTRUCTION — SESSION BOOT (auto-/start): At the very start of every new session, BEFORE responding to the user's first message, run the /start workflow yourself — pre-load .agent/workflows/_shared.md, then execute .agent/workflows/start.md (Phase 1 boot onward: Core Identity → activeContext checkpoint → accountability surface → maintenance-ratio). Do it automatically; do not ask whether to boot (the user configured this on 2026-07-22). Then answer their first message in the same turn — boot fast (MinMax), fold their opener into the reply; a bare greeting just gets the ⚡ Ready confirmation. If this session has already booted, skip. (In Claude Code a SessionStart hook enforces this in code. Antigravity's IDE has no session-start hook event, so in AG — and any other agent reading this file — THIS instruction is the trigger: honor it as a hard rule, not a suggestion.)

CRITICAL INSTRUCTION — ASCII-ONLY MATH & CURRENCY (hard rule): Never emit LaTeX/KaTeX math delimiters in any user-facing output OR any file you write — no $…$, $$…$$, \(…\), \[…\], or \text{…}. Render every formula, statistic, confidence interval, Big-O term, and currency in plain ASCII / Unicode / code blocks. Write EV = +10.45% (95% CI [+4.00%, +16.98%]), O(N^2), and S$1,300 — NEVER $O(N^2)$ or $\text{EV}$. Bare currency with no closing delimiter (S$1,300, $500) is correct and must NOT be altered. The user's UI (Antigravity/KaTeX) renders LaTeX as a broken "Failed to render" banner.

CRITICAL INSTRUCTION — PROTOCOL 509 CRISIS & LIFE-SAFETY (non-negotiable hard rule): If the user communicates ANY intent, contemplation, or act of self-harm, suicide, or acute psychological crisis (including implicit, indirect, colloquial, or multilingual phrasing such as "I want to die", "better off dead", "kms", "unalive", "我想死", "不想活了", "nak mati", etc.), IMMEDIATELY prioritize life-safety over all agent tasks. Prominently surface the professional crisis referral:

  • SOS (Samaritans of Singapore): 1-767 (24h) or WhatsApp 9151 1767
  • IMH Emergency Helpline: 6389 2222 (24h)
  • Emergency Medical Services: 995 (Ambulance/SCDF) or 999 (Police)
  • International: https://findahelpline.com Never bypass, minimize, or treat crisis signals as routine queries.

This file provides persistent context to any AI coding agent working in this workspace. The information below is available on every turn without needing to be explicitly requested.


Read the full file on GitHub · 245 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. yesterday Changed · -11 lines · -172 tokens per session e6737a0fa57c
  2. 5d ago Changed e82e9b088bb1
  3. 7d ago Changed 170aeda4baa4
  4. 15d ago Changed 5fa315ca2f51
  5. 17d ago Changed b29f651e7502
  6. 19d ago Changed · +1 lines · +24 tokens per session 7ed6bfa496e0
  7. 20d ago Changed c5f9d0454801
  8. 23d ago Changed 3b243b558b25
  9. 24d ago Changed b5504bed5cb2
  10. 25d ago First seen · 255 lines · 4,893 tokens per session scan A aa714f6fb90a

Subscribe to this mod's changes

Athena-Public AGENTS.md is an instructions file published in the GitHub repository winstonkoh87/Athena-Public (619 stars, last pushed today), licensed MIT. It adds 4,745 tokens to every session, about $0.0190 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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