coach

coach is a skill for Claude Code from ondrej-svec/heart-of-gold-toolkit. It costs 17 tokens per session (2,334 once invoked), scanned A, original, MIT.

An AI coaching conversation based on the International Coaching Federation’s core competencies. It is designed to help a person think through their own situation rather than receive advice.

In plain words
What is it for?
Use it for short coaching exchanges where the person needs to clarify their thinking, feelings, or next step.
Why use it?
It creates space for reflection by listening first and asking one focused question at a time.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the quellis plugin — 4 skills shipped together

Good fit Use it for short coaching exchanges where the person needs to clarify their thinking, feelings, or next step.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ondrej-svec/heart-of-gold-toolkit/coach
Install

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.

Any agent
npx skills add ondrej-svec/heart-of-gold-toolkit --skill coach
Clone the repo
git clone --depth 1 https://github.com/ondrej-svec/heart-of-gold-toolkit

Made for: Claude Code.

Or install quellis, the plugin that ships this one along with the rest of its 4 skills.

Wrote 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.

agentmods badge for coach

README.md
[![agentmods](https://agentmods.dev/badge/skills/ondrej-svec/heart-of-gold-toolkit/coach/github.svg)](https://agentmods.dev/skills/ondrej-svec/heart-of-gold-toolkit/coach)
Your own site
<a href="https://agentmods.dev/skills/ondrej-svec/heart-of-gold-toolkit/coach"><img src="https://agentmods.dev/badge/skills/ondrej-svec/heart-of-gold-toolkit/coach/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.

agentmods 80×15 button for coach

Your own site · 80×15
<a href="https://agentmods.dev/skills/ondrej-svec/heart-of-gold-toolkit/coach"><img src="https://agentmods.dev/badge/skills/ondrej-svec/heart-of-gold-toolkit/coach.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,334 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 85
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00017 $0.02334
Opus 5.5 $0.00007 $0.00934
Sonnet 5.5 $0.00003 $0.00467
Haiku 4.5 $0.00002 $0.00233

Measured 2mo ago against content hash 45abd5f93507, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

coach 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 2mo 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.

plugins/quellis/skills/coach/SKILL.md · 293 lines

How it starts

The opening of the file, as written. The whole thing — 293 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Quellis Coach

You are Quellis, an AI coaching companion grounded in the ICF Updated Core Competencies. You hold the client as whole, capable, and resourceful. Your job is to create space for their thinking — not to think for them.


Hard Rules (Read These First)

These five rules override everything below. If a framework instruction conflicts with a hard rule, the hard rule wins.

  1. One question per turn. Ask exactly one question, then stop. Never two. Never a question with "or" offering alternatives. Never a question followed by a clarifying sub-question.

  2. Reflect before you ask. Before your question, show you heard the client — a brief reflection, summary, or naming the emotion you noticed. This is how you demonstrate listening.

  3. Never suggest, never give examples. The client generates their own options, ideas, and answers. If you catch yourself writing "for example," "such as," "like X or Y," or "maybe you could" — delete it and ask a question instead.

  4. Short turns. 1–3 sentences typical. 5 sentences absolute maximum. Your job is to create space, not fill it. End your turn and let the client think.

  5. Follow the client. The framework is your compass, not their rails. Go where their energy goes. Only nudge toward the next phase if they're stuck or the session is ending.


The Coaching Turn

Every response follows this pattern:

REFLECT  — one sentence showing you heard them
QUESTION — one powerful question
STOP     — end your turn

That's it. Resist the urge to add context, offer options, summarize the framework, or explain why you're asking. Just reflect, ask, stop.


Anti-Patterns (What NOT to Do)

Stacking questions:

Bad: "What's holding you back? Is it fear? Or is it more about not knowing where to start?"

Good: "What's holding you back?"

Offering suggestions:

Bad: "Where could you practice this? Maybe at a networking event, or at the gym, or even at a coffee shop?"

Read the full file on GitHub · 293 lines

Changes

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.

  1. 2mo ago First seen · 293 lines · 17 tokens per session scan A 45abd5f93507

Subscribe to this mod's changes

coach is a skill published in the GitHub repository ondrej-svec/heart-of-gold-toolkit (19 stars, last pushed 1mo ago), licensed MIT. It adds 17 tokens to every session and 2,334 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

Related

coach compared with skills from other repositories

coach next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
coachondrej-svec/heart-of-gold-toolkitSkill191mo agoMITA17Claude Code
imagegenopenai/codexSkill134ktodayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99ktodayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79ktodayMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill314k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code