start

A command that loads project state and summarizes priorities, deadlines, and blockers at the start of a session. It can optionally read the next seven days of calendar events and an unread email count when the required Google CLI is already configured.

In plain words
What is it for?
Use it to begin work with a briefing from repository state, upcoming calendar events, unread mail totals, and referenced project trackers.
Why use it?
It gives the agent current working context without requiring changes to connected services or guessing missing project settings.

Command for Claude Code

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 commands/conorbronsdon/agent-context-os/start
Clone the repo
git clone --depth 1 https://github.com/conorbronsdon/agent-context-os

Made for: Claude Code.

Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 247 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 $0.00027 $0.00247
Opus 5 $0.00014 $0.00123
Sonnet 5 $0.00005 $0.00049
Haiku 4.5 $0.00003 $0.00025

Measured 2d ago against content hash e9c35f9216cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

start 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 2d 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.

.claude/commands/start.md · 19 lines

What it actually says

/start — Claude Code adapter

Read and follow .agents/skills/context-start/SKILL.md as the canonical workflow.

While performing its optional live-source step, use the gws CLI only when it is already installed and authenticated. Every CLI invocation requires the normal tool approval flow so the user can review the exact command and arguments:

  • Calendar: list the primary calendar from today through the next seven days with single events ordered by start time; request only summary, start, end, and attendees.
  • Gmail: optionally request the unread count only, with is:unread and a single-result limit.
  • Project trackers: read state/gws-references.md and query only identifiers the user placed there.

If the CLI or identifiers are unavailable, continue from repository state without treating that as an error. Do not authenticate, change configuration, use --page-all or --output, send messages, or write to any connected service.

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. 2d ago First seen · 19 lines · 27 tokens per session scan A e9c35f9216cf

Subscribe to this mod's changes

start is a command published in the GitHub repository conorbronsdon/agent-context-os (17 stars, last pushed today), licensed MIT. It adds 27 tokens to every session and 247 once invoked, about $0.0001 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.