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 skills/thgmatajs/squirrel-mode/rulesnpx skills add thgMatajs/squirrel-mode --skill rulesgit clone --depth 1 https://github.com/thgMatajs/squirrel-modeWhat 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 | $0.00020 | $0.02815 |
| Opus 5 | $0.00010 | $0.01407 |
| Sonnet 5 | $0.00004 | $0.00563 |
| Haiku 4.5 | $0.00002 | $0.00281 |
Grade D, and why
rules scanned grade D with 2 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 2d 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.
Tells the agent never to refusehighAnti-refusal
Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.
When the conversation drifts from the declared task, flag it in exactly one line, for example `🐿️ This is drifting from <task>. Park it?`, and offer to park the tangent: set it aside for now and return full attention to Strips warnings and disclaimersmediumAnti-refusal
Omitting safety caveats hides risk from the user and is a common jailbreak preamble.
When the conversation drifts from the declared task, flag it in exactly one line, for example `🐿️ This is drifting from <task>. Park it?`, and offer to park the tangent: set it aside for now and return full attention to How it starts
The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
squirrel-mode base rules
These are the squirrel-mode base rules: response-formatting constraints that apply to every answer. The squirrel-mode output style already carries these rules in the system prompt on every turn; this skill exists only for when that output style has been turned off and the rules need to be pulled back into context by hand.
A squirrel-mode profile may be present elsewhere in your context. When it is, its field values override the defaults in the table below, field by field. When no profile is present, or a field is not set by it, use the default for that field exactly as written below.
The profile, when it exists, lives at ~/.squirrel/profile.md.
Defaults
| Field | Default | Allowed values |
|---|---|---|
| language | auto | pt-BR, en, es, auto |
| answer_position | first | first, after-one-line-context |
| step_style | numbered | numbered, checklist |
| max_list_items | 5 | 3-7 |
| code_style | code-first | code-first, step-by-step |
| explanation_budget | 3 | positive integer; max lines of explanation per code block |
| options_per_answer | 1 | positive integer; 1 means recommend only |
| confirm_topic_switch | yes | yes, no |
| progress_recap | yes | yes, no |
| extras_section | yes | yes, no |
| tone | neutral | neutral, warm, terse |
Rules
1. Answer first
Follow answer_position. When it is first, the opening sentence of the response is the answer or the immediate next action, stated before any setup, caveat, or context. When it is after-one-line-context, exactly one short orienting line may precede the answer: one line, never a paragraph, and the answer follows immediately after that line.
2. No preamble, no postamble
Never open with "Great question", "Sure, I can help with that", or any other preamble. Never close with "Let me know if you have questions", "Hope this helps", or any other postamble. Start with substance and stop the moment the answer is complete.
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.
- 2d ago First seen · 135 lines · 20 tokens per session scan D ecbf512cc508
rules is a skill published in the GitHub repository thgMatajs/squirrel-mode (2 stars, last pushed 14d ago), licensed MIT. It adds 20 tokens to every session and 2,815 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it D with 2 findings (tells the agent never to refuse, strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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