What is install-chiefofstaff?

A setup wizard for an executive assistant agent that uses your tools, team information, and priorities to prepare daily briefings and other work summaries.

Use it for daily briefings, preparing for meetings, tracking decisions, and producing weekly summaries, either on your computer or through Trinity, a system for deploying and scheduling agents.

It removes the need to build and organize this kind of assistant manually, including its starting instructions and files.

install-chiefofstaff — Skill for Claude Code by Abilityai

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add Abilityai/abilities

Claude Code

/plugin install create-agent

Made for: Claude Code.

Or install create-agent, the plugin that ships this one along with the rest of its 14 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/abilityai/abilities/chief-of-staff/github.svg)](https://agentmods.dev/skills/abilityai/abilities/chief-of-staff)

Your own site

<a href="https://agentmods.dev/skills/abilityai/abilities/chief-of-staff"><img src="https://agentmods.dev/badge/skills/abilityai/abilities/chief-of-staff/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/abilityai/abilities/chief-of-staff"><img src="https://agentmods.dev/badge/skills/abilityai/abilities/chief-of-staff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 12,081 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00043	$0.12081
Opus 5	$0.00022	$0.06041
Sonnet 5	$0.00009	$0.02416
Haiku 4.5	$0.00004	$0.01208

Measured 11d ago against content hash 17246091d3b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

install-chiefofstaff scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

# Container-only config: the Trinity base image bakes ~/.claude/settings.json with

plugins/create-agent/skills/chief-of-staff/SKILL.md · 1,253 lines

How it starts

The opening of the file, as written. The whole thing — 1,253 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Install Chief of Staff

ℹ️ First, set expectations: before anything else, print one short line with this skill's version and its most recent change — the top entry of metadata.changelog above — e.g. install-chiefofstaff vX.Y — recent: <summary>. Then proceed.

Create an executive chief of staff agent powered by Claude Code and compatible with Trinity for remote deployment, scheduling, and orchestration.

What you'll get:

A fully configured agent directory with CLAUDE.md, skills, and Trinity files
4 starting skills: daily briefing, meeting prep, decision tracker, weekly digest
Ready for local use or Trinity deployment (where it really shines — scheduled morning briefings)

Built by Ability.ai — the agent orchestration platform.

STEP 1: Determine Destination

If the user provided a destination path as an argument, use it. Otherwise, ask:

Use AskUserQuestion:

Question: "Where should Chief of Staff be installed?"
Header: "Location"
Show these options:
1. ~/chiefofstaff — Home directory (recommended)
2. ./chiefofstaff — Current directory
3. Custom path — Let me specify

Default to ~/chiefofstaff if no preference.

Expand ~ to the actual home directory using:

echo "$HOME"

Validate the destination does not already exist:

ls -la [destination] 2>/dev/null

If it exists, warn the user and offer:

Pick a different path
Cancel

STEP 2: Domain-Specific Questions

Ask these 4 questions to customize the agent. Each answer directly shapes the generated files.

Q1: Tools

Use AskUserQuestion:

Question: "What tools does your day run on? This determines where briefings pull data from and how meeting prep gathers context."
Header: "Tools"
multiSelect: true
Options:
1. Google Workspace — Gmail and Google Calendar. Briefings check your inbox and today's meetings.
2. Slack — Team messaging. Briefings surface overnight messages, mentions, and threads that need you.
3. Notion — Docs and wikis. Meeting prep pulls context from shared pages; decisions can be logged here.
4. Linear / Jira — Project tracking. Briefings flag blockers, overdue items, and team velocity.

Read the full file on GitHub · 1,253 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.

11d ago First seen · 1,253 lines · 43 tokens per session scan B 17246091d3b1

Subscribe to this mod's changes

install-chiefofstaff is a skill published in the GitHub repository Abilityai/abilities (11 stars, last pushed 4d ago), licensed MIT. It adds 43 tokens to every session and 12,081 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Planning Productivity

orbit-notion

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nexu-io/open-design · 117 tokens

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Operate Cortex, the LifeOS memory system — the typed Knowledge Archive (People, Companies, Ideas, Research with typed related: links) plus recall of prior work sessions, ISAs, and conversations. Search, add, harvest, develop, ingest, distill, graph-navigate, recall. USE WHEN cortex, knowledge, knowledge base, search…

danielmiessler/LifeOS · 196 tokens

pinchtab-mcp

Use this skill when a task requires browser automation through PinchTab's MCP server connected to a remote browser instance. Covers navigation, element interaction, data extraction, form filling, multi-step flows, and session management via MCP tools.

pinchtab/pinchtab · 52 tokens

install-chiefofstaff