fleet

A command that shows a local web board and a live summary of Claude Code sessions running on the computer.

In plain words
What is it for?
Use it to find the board address and check each session's project, branch, current task, and status.
Why use it?
It gives you one place to see which sessions are working, waiting, verifying, idle, or offline.

Command

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/lacion/fleet-deck/fleet
Clone the repo
git clone --depth 1 https://github.com/lacion/fleet-deck
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 643 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00018 $0.00643
Opus 5 $0.00009 $0.00321
Sonnet 5 $0.00004 $0.00129
Haiku 4.5 $0.00002 $0.00064

Measured 2d ago against content hash 22417b737e23, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fleet scanned grade A 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

allowed-tools: Bash(curl:*), Bash(cat:*)
commands/fleet.md · 27 lines

How it starts

The opening of the file, as written. The whole thing — 27 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fleet endpoint and state (raw)

!PORT=${FLEETDECK_PORT:-4711}; case "$PORT" in ''|*[!0-9]*|??????*) PORT=4711;; *) if [ "$PORT" -lt 1 ] || [ "$PORT" -gt 65535 ]; then PORT=4711; fi;; esac; printf 'FLEET_BOARD_URL=http://127.0.0.1:%s/\n' "$PORT"; TOKEN=$(cat "${FLEETDECK_HOME:-$HOME/.fleetdeck}/token" 2>/dev/null); curl -sf -m 2 ${TOKEN:+-H "Authorization: Bearer $TOKEN"} "http://127.0.0.1:$PORT/state" || echo FLEET_DAEMON_DOWN

Your task

Report on the fleet using ONLY the endpoint and raw state above. The first line is the exact board URL for this environment; use its value verbatim. Print exactly this, nothing more:

If the raw state is FLEET_DAEMON_DOWN (or empty / not JSON):

Board: fleet daemon not running — it starts with your next session

Otherwise a compact summary (aim for under 15 lines):

  1. Board: <the FLEET_BOARD_URL value above>
  2. Sessions grouped by column, in this order: needsyou, working, verifying, queued, idle, offline. One line per column that has sessions: working (2): NOVA — fleetdeck (main) · editing derive.mjs, ... using each session's callsign, repo_name, branch, and note/task when present. Skip empty columns; summarize offline as a count only (e.g. offline: 3).
  3. Conflicts: if conflicts is non-empty, one line per conflict: ⚠ <rel_path> — <severity> — sessions: <callsigns or ids>. Otherwise conflicts: none.
  4. Mail: mail_pending is a per-session count map {<session_id>: <count>} (sessions with no queued mail appear with 0). Compute N as the total across all sessions — the sum of every value in the map. If N > 0: mail: N queued — followed by a per-route breakdown derived from mail_meta (only list routes that have queued mail): watcher = wakes immediately, pane = typed into the pane after a grace window, turn-boundary = delivered at the next turn boundary, offline-queued = held until the session is resumed. Example: mail: 3 queued — 1 wakes immediately (watcher), 1 typed into pane, 1 held until resume (offline). Otherwise omit the line.

Read the full file on GitHub · 27 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. 2d ago First seen · 27 lines · 18 tokens per session scan A 22417b737e23

Subscribe to this mod's changes

fleet is a command published in the GitHub repository lacion/fleet-deck (28 stars, last pushed 4d ago), licensed MIT. It adds 18 tokens to every session and 643 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.