office-hours

office-hours is a skill for Claude Code, Codex from slopus/happy. It costs 135 tokens per session (8,434 once invoked), scanned A, original, MIT.

A manually triggered planning skill based on YC office hours, a format where startup builders pressure-test an idea through focused questions. It supports startup discussions and side-project brainstorming, but produces design documents rather than code.

In plain words
What is it for?
Use it to explore a startup idea, shape a hackathon or side project, define a focused first version, or document product decisions. Trigger it by typing /office-hours.
Why use it?
It helps clarify who has the problem, how they solve it today, and what the smallest useful product could be before implementation begins.

Skill for Claude CodeCodex

About the project

Happy is a mobile, web, and desktop client that lets people use Claude Code and Codex remotely from their computers and mobile devices. It is for developers who want encrypted access to coding-agent sessions, including notifications and switching between devices. The catalogue add-ons extend the workflows available in this client.

slopus/happy · 23,637 stars · on GitHub · happy.engineering

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.

agentmods
npx agentmods add skills/slopus/happy/office-hours
Any agent
npx skills add slopus/happy --skill office-hours
Clone the repo
git clone --depth 1 https://github.com/slopus/happy

Made for: Claude Code, Codex.

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 office-hours

README.md
[![agentmods](https://agentmods.dev/badge/skills/slopus/happy/office-hours.svg)](https://agentmods.dev/skills/slopus/happy/office-hours)
Your own site
<a href="https://agentmods.dev/skills/slopus/happy/office-hours"><img src="https://agentmods.dev/badge/skills/slopus/happy/office-hours.svg" alt="Measured on agentmods" height="20"></a>
Per session 135 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,434 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00135 $0.08434
Opus 5 $0.00068 $0.04217
Sonnet 5 $0.00027 $0.01687
Haiku 4.5 $0.00014 $0.00843

Measured 6d ago against content hash e42291baa405, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

office-hours 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 6d 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.

.agents/skills/office-hours/SKILL.md · 699 lines

How it starts

The opening of the file, as written. The whole thing — 699 lines — stays where its author put it; the contents beside it link to each section on GitHub.

YC Office Hours

You are a YC office hours partner. Your job is to ensure the problem is understood before solutions are proposed. You adapt to what the user is building — startup founders get the hard questions, builders get an enthusiastic collaborator. This skill produces design docs, not code.

HARD GATE: Do NOT invoke any implementation skill, write any code, scaffold any project, or take any implementation action. Your only output is a design document.


Phase 1: Context Gathering

Understand the project and the area the user wants to change.

  1. Read any project documentation (README, design docs, etc.) if they exist.

  2. Review recent git history to understand context.

  3. Explore the codebase areas most relevant to the user's request.

  4. Check for any existing design docs from prior sessions related to this project. If they exist, surface them: "Prior designs for this project: [titles + dates]"

  5. Ask: what's your goal with this? This is a real question, not a formality. The answer determines everything about how the session runs.

    Ask:

    Before we dig in — what's your goal with this?

    • Building a startup (or thinking about it)
    • Intrapreneurship — internal project at a company, need to ship fast
    • Hackathon / demo — time-boxed, need to impress
    • Open source / research — building for a community or exploring an idea
    • Learning — teaching yourself to code, vibe coding, leveling up
    • Having fun — side project, creative outlet, just vibing

    Mode mapping:

    • Startup, intrapreneurship → Startup mode (Phase 2A)
    • Hackathon, open source, research, learning, having fun → Builder mode (Phase 2B)
  6. Assess product stage (only for startup/intrapreneurship modes):

    • Pre-product (idea stage, no users yet)
    • Has users (people using it, not yet paying)
    • Has paying customers

Output: "Here's what I understand about this project and the area you want to change: ..."

Read the full file on GitHub · 699 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. 6d ago First seen · 699 lines · 135 tokens per session scan A e42291baa405

Subscribe to this mod's changes

office-hours is a skill published in the GitHub repository slopus/happy (23,637 stars, last pushed 2d ago), licensed MIT. It adds 135 tokens to every session and 8,434 once invoked, about $0.0007 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.

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