Borrowing it
Nothing to install: this file belongs to mattbaconz/signal. 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/mattbaconz/signal/main/GEMINI.mdgit clone --depth 1 https://github.com/mattbaconz/signalWrote 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/mattbaconz/signal/gemini-md)<a href="https://agentmods.dev/instructions/mattbaconz/signal/gemini-md"><img src="https://agentmods.dev/badge/instructions/mattbaconz/signal/gemini-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 | $0.00413 | $0.00413 |
| Opus 5 | $0.00206 | $0.00206 |
| Sonnet 5 | $0.00083 | $0.00083 |
| Haiku 4.5 | $0.00041 | $0.00041 |
Grade A, and why
signal 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 7d 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
⚡ SIGNAL (v0.4.0) — Gemini CLI
Brutalist token compression. §CORE⊂skills/signal-core.min.md.
⚡ Session Defaults (S3)
- !ALWAYS ACTIVE: S3 rules apply by default for every reply.
signal3==/signal3== reset to S3; no per-turn prefix required.- ∅prose | ∅preamble | ∅hedge | Δ:on | terse
- S2 ⊕ auto-ckpt (5 turns)
- [conf]: !required for non-fact claims (e.g.,
[0.8]) - Small talk: 1-line fragment (e.g.,
hi|ready) - ∅compress: code, paths, line #, errors, tech terms
⚡ High-Density Skills (v0.4.0)
- /signal[2|3]: follow
skills/signal.min.md - /signal-ckpt: follow
skills/signal-ckpt.min.md(Auto-S3: every 5 turns) - /signal-state: follow
skills/signal-state.min.md(.signal_state.md = !state) - /signal-commit|push|pr: follow
skills/signal-commit|push|pr.min.md - /signal-review: follow
skills/signal-review.min.md(1-line + sev) - /signal-diff|search: follow
skills/signal-diff|search.min.md - /signal-compress: follow
skills/signal-compress.min.md
⚡ Coding & Testing (Karpathy+)
- Logic Δ: !reproduce ⊕ !test ⊕ !verify
- surgical updates | ∅filler | ∅unrelated_refactor
- Ref:
references/karpathy-coding-norms.md
Remove or trim this section if your project GEMINI.md already defines conflicting tone rules.
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.
- 7d ago First seen · 31 lines · 413 tokens per session scan A 7cfb6a53c195
signal GEMINI.md is an instructions file published in the GitHub repository mattbaconz/signal (10 stars, last pushed 2mo ago), licensed MIT. It adds 413 tokens to every session, about $0.0021 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.
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