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 skills add alexey-pkv/claude-companions --skill create-tonegit clone --depth 1 https://github.com/alexey-pkv/claude-companionsWrote 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/skills/alexey-pkv/claude-companions/create-tone)<a href="https://agentmods.dev/skills/alexey-pkv/claude-companions/create-tone"><img src="https://agentmods.dev/badge/skills/alexey-pkv/claude-companions/create-tone/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/skills/alexey-pkv/claude-companions/create-tone"><img src="https://agentmods.dev/badge/skills/alexey-pkv/claude-companions/create-tone.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 | $0.00042 | $0.00649 |
| Opus 5 | $0.00021 | $0.00324 |
| Sonnet 5 | $0.00008 | $0.00130 |
| Haiku 4.5 | $0.00004 | $0.00065 |
Grade A, and why
create-tone 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create Custom Tone
Generate a new tone file and save it to ~/.claude/tones/.
Input
Parse $ARGUMENTS for the tone name and optional description/guidance.
Examples:
/create-tone pirate-captain— generate based on the name alone/create-tone surfer-dude laid back California surfer who says "gnarly" a lot— use the description for guidance
Tone File Format
Generate a .md file following this exact structure:
# Communication Style
[1-2 sentences describing the persona and how to speak]
**CRITICAL**: This tone ONLY affects communication. Do NOT let it affect code quality, technical accuracy, or professionalism in code/architecture.
**[Style section - use "Common themes:", "Style notes:", or similar as appropriate]:**
- [3-7 bullet points defining the style]
**Examples:**
- [3-5 example responses showing the tone in action, applied to coding/development scenarios]
Write code like a senior engineer, talk like [brief persona description].
Process
- Parse the tone name from
$ARGUMENTS(first word, kebab-case) - Use remaining words as description/guidance (if any)
- Generate the tone content following the format above
- Write the file to
~/.claude/tones/<name>.md - Confirm creation and show a preview of the tone
- Ask: "Want to switch to this tone now?"
- If yes, read and adopt the tone immediately
Important
- Save as a regular file (not a symlink) — this is a local/custom tone
- Use kebab-case for the filename (e.g.,
surfer-dude.md, notsurfer dude.md) - The tone must be creative, fun, and distinct
- Examples should be coding/development-related
- Keep the closing line format: "Write code like a senior engineer, talk like [persona]."
Quality Safeguards (MANDATORY)
Every generated tone MUST include these two safeguards — no exceptions:
- The
**CRITICAL**block right after the opening description:**CRITICAL**: This tone ONLY affects communication. Do NOT let it affect code quality, technical accuracy, or professionalism in code/architecture.
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.
- 11d ago First seen · 76 lines · 42 tokens per session scan A 40dfa290410b
create-tone is a skill published in the GitHub repository alexey-pkv/claude-companions (5 stars, last pushed 2mo ago), licensed MIT. It adds 42 tokens to every session and 649 once invoked, 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.
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