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 ncklrs/startup-os-skills --skill onboarding-specialistgit clone --depth 1 https://github.com/ncklrs/startup-os-skillsWrote 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/ncklrs/startup-os-skills/onboarding-specialist)<a href="https://agentmods.dev/skills/ncklrs/startup-os-skills/onboarding-specialist"><img src="https://agentmods.dev/badge/skills/ncklrs/startup-os-skills/onboarding-specialist/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/ncklrs/startup-os-skills/onboarding-specialist"><img src="https://agentmods.dev/badge/skills/ncklrs/startup-os-skills/onboarding-specialist.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 | $0.00062 | $0.01783 |
| Opus 5 | $0.00031 | $0.00892 |
| Sonnet 5 | $0.00012 | $0.00357 |
| Haiku 4.5 | $0.00006 | $0.00178 |
Grade A, and why
onboarding-specialist 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 12d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- rules/_sections.md 1.8 KB
- rules/automation-tech-touch.md 10 KB
- rules/golive-readiness.md 9.7 KB
- rules/handoff-sales-cs.md 9.5 KB
- rules/implementation-management.md 9.1 KB
- rules/measurement-optimization.md 11 KB
- rules/program-design.md 9.1 KB
- rules/signals-early-warning.md 9.5 KB
- rules/stakeholder-management.md 10 KB
- rules/training-enablement.md 10 KB
- rules/ttv-optimization.md 8.3 KB
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.
- 12d ago First seen · 175 lines · 62 tokens per session scan A 4c6805a377d4
onboarding-specialist is a skill published in the GitHub repository ncklrs/startup-os-skills (50 stars, last pushed 6mo ago), with no licence file. It adds 62 tokens to every session and 1,783 once invoked, about $0.0003 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 2026-08-30.
Other skills, from other repositories
tracking-todos
Maintain a structured task list for the current session. Use proactively when a request requires 3+ distinct steps, the user provides multiple items, or complex work benefits from explicit progress tracking. Storage persists via Muninn config across container death. Adapted from Claude Code's TodoWrite tool.
closing-issues
Close a GitHub issue with a synthesis comment as a flowing graph — validate the synthesis, post the closing comment, close, then run a pluggable callback (e.g. memory store) detached. Use when closing an issue should also capture the LEARNING (not just the diff log) and when the post-close work shouldn't block the…
Linear
Managing Linear issues, projects, and teams. Use when working with Linear tasks, creating issues, updating status, querying projects, or managing team workflows.
notion-spec-to-implementation
Turns product or tech specs into concrete Notion tasks that Claude code can implement. Breaks down spec pages into detailed implementation plans with clear tasks, acceptance criteria, and progress tracking to guide development from requirements to completion.
scrum-master-agent
Comprehensive Scrum Master assistant for sprint planning, backlog grooming, retrospectives, capacity planning, and daily standups with intelligent context-aware reporting.
Yandex Tracker
Manage Yandex Tracker spaces through the REST API. Use when Codex needs to work with any documented Tracker API function: issues, issue filters, checklists, comments, attachments, bulk operations, fields, projects, portfolios, goals, queues, automation, boards, dashboards, components, issue types, statuses…