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.
npx agentmods add instructions/pomagrenate/ice_age/agents-mdgit clone --depth 1 https://github.com/pomagrenate/ice_ageWrote 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/pomagrenate/ice_age/agents-md)<a href="https://agentmods.dev/instructions/pomagrenate/ice_age/agents-md"><img src="https://agentmods.dev/badge/instructions/pomagrenate/ice_age/agents-md.svg" alt="Measured on agentmods" 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 | $0.00046 | $0.00046 |
| Opus 5 | $0.00023 | $0.00023 |
| Sonnet 5 | $0.00009 | $0.00009 |
| Haiku 4.5 | $0.00005 | $0.00005 |
Grade A, and why
ice_age 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 5d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- ice_age GEMINI.md — 100% identical, 0 lines differ
What it actually says
@./skills/iceage/SKILL.md @./skills/iceage-commit/SKILL.md @./skills/iceage-review/SKILL.md @./skills/compress/SKILL.md
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.
- 5d ago First seen · 5 lines · 46 tokens per session scan A 161c71227507
ice_age AGENTS.md is an instructions file published in the GitHub repository pomagrenate/ice_age (2 stars, last pushed 16d ago), licensed Apache-2.0. It adds 46 tokens to every session, about $0.0002 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 2026-08-31.
Other instructions, from other repositories
entroly CLAUDE.md
Claude Code instructions for juyterman1000/entroly, covering claude.md, gstack operating protocol, default workflow, entroly trust invariants and review checklist.
remindb CLAUDE.md
Instructions for radimsem/remindb, covering claude.md, project at a glance, code map, where to read first — don't grep, don't ls and tread carefully — pause before implementing.
GoSQLX CLAUDE.md
Instructions for ajitpratap0/GoSQLX, covering claude.md, project overview, architecture, core components and token processing pipeline.
mcp-slim-guard AGENTS.md
Instructions for lennney/mcp-slim-guard, covering slim guard agent contract, scope and source of truth, repository map, product invariants and code style.
mcp-slim-guard copilot-instructions.md
Instructions for lennney/mcp-slim-guard: AGENTS.md is the source of truth for repository and agent guidance. This file is a short review-focused distillation for Copilot surfaces that do not load the full hierarchy. Update AGENTS.md first when a rule changes.
jcodemunch-mcp AGENTS.md
AGENTS.md instructions for jgravelle/jcodemunch-mcp, covering code exploration policy, session-aware routing and model-driven tool tiering.