Borrowing it
Nothing to install: this file belongs to acryldev/acryl. 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/acryldev/acryl/main/GEMINI.mdgit clone --depth 1 https://github.com/acryldev/acrylWrote 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/acryldev/acryl/gemini-md)<a href="https://agentmods.dev/instructions/acryldev/acryl/gemini-md"><img src="https://agentmods.dev/badge/instructions/acryldev/acryl/gemini-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/acryldev/acryl/gemini-md"><img src="https://agentmods.dev/badge/instructions/acryldev/acryl/gemini-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 | $0.00565 | $0.00565 |
| Opus 5.5 | $0.00226 | $0.00226 |
| Sonnet 5.5 | $0.00113 | $0.00113 |
| Haiku 4.5 | $0.00056 | $0.00056 |
Grade A, and why
acryl GEMINI.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 29d 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.
This is a copy
100% identical to acryl copilot-instructions.md — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Graft — repo context graph
This repo is indexed in graft/: small linked markdown nodes that explain each
system and carry exact file:line spans, kept in sync with the code through git.
For ANY task here — understanding how something works, finding where code lives,
or scoping a change — get context from the graph before grepping or opening
source files. Re-ask freely (it's cheap) and reuse literal identifiers you
already have (symbol, error string, file name) as the query. New to this repo?
Run graft map first — a token-budgeted orientation (dir clusters, hubs,
hotspots), no LLM, no key.
- Run
graft ask "<your question>" --source→ ranked nodes with the relevant code spans inlined (each hit's ≤8-line crux by default;--fullfor whole definitions when the crux isn't enough). Match the tool to the task shape: for understanding or editing, the top node IS the answer — cite itscovers:file:line spans and edit straight from--source. For exhaustive tasks ("every occurrence / every caller of this pattern"), ranked results are top-N, not complete — rungraft grep "<literal>"instead (exhaustive over indexed files, grouped by enclosing symbol), falling back to rawgrep -rnonly for unindexed files. graft skeleton <file>→ every definition's signature + span, ~10× cheaper than reading the file; use it to skim an API surface.graft callers <symbol>gives precomputed, exact edges — who calls this. Add--direction outfor what it calls, or--depth Nto walk transitively for the full blast radius. For structural questions, skip ranking and use this directly.- Or browse:
graft/INDEX.mdlists every node; follow the links. - Monorepos and folders of multiple repos rank fairly across sub-projects —
hits carry
[scope/]labels naming which one they're from. Narrow withgraft ask "<task>" --in <scope>/once you know where you're working.
If a returned span is truncated ("+N more lines"), open the file at that exact range before finalizing. Only open source files when a node genuinely lacks a needed detail, and then at the exact file:line the node points to — never re-read whole files.
After big code changes, refresh the graph with graft build (deterministic,
no API key, $0).
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.
- 29d ago First seen · 42 lines · 565 tokens per session scan A 5c0eb4f464f0
acryl GEMINI.md is an instructions file published in the GitHub repository acryldev/acryl (257 stars, last pushed yesterday), licensed MIT. It adds 565 tokens to every session, about $0.0023 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to acryl copilot-instructions.md, differing in 0 lines, and is treated as a copy.
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