update

A command for synchronising a LETS project with its current release, including environment files, rules, and optional tracking files. LETS is the project system being updated, and the command follows the next required step until versions match.

In plain words
What is it for?
Use it to refresh LETS configuration and rules, install the required binary when approved, and identify the remaining plugin or sync action.
Why use it?
It removes the manual work of finding version drift and deciding which update step comes next.

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/restarter/lets-workflow/update
Clone the repo
git clone --depth 1 https://github.com/restarter/lets-workflow
Per session 55 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,826 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 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 $0.00055 $0.02826
Opus 5 $0.00028 $0.01413
Sonnet 5 $0.00011 $0.00565
Haiku 4.5 $0.00006 $0.00283

Measured 2d ago against content hash 743328181c5d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

update scanned grade C with 2 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

- `NO_LETS_BINARY` → tell user: "`lets` binary not found on `$PATH`. Install it — `! curl -fsSL https://raw.githubusercontent.com/restarter/lets-workflow/main/scripts/install.sh | bash` (the leading `!` runs it in this s

Makes network callslowCapability

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

- `NO_LETS_BINARY` → tell user: "`lets` binary not found on `$PATH`. Install it — `! curl -fsSL https://raw.githubusercontent.com/restarter/lets-workflow/main/scripts/install.sh | bash` (the leading `!` runs it in this s
plugins/lets/commands/update.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Update LETS

Sync the drift-able LETS artifacts (four core + two optional: the user-scope global rules and the active tracker-<name>.md adapter) with the current release. Bridges to lets update --json (Go binary): auto-syncs .lets/.env (header refresh when LETS_ENV_VERSION is stale), .claude/rules/lets-rules.md (re-copy when outdated/missing - but deferred when the plugin is behind, so rules never sync to a stale plugin), and ~/.claude/rules/lets-rules.md (user-scope global rules - the user-rules row appears only when that file exists). It then computes a single ordered next_action (the self-driving loop): the binary step can be run in-session (approval-gated), the plugin step is a user-only Claude Code slash command, and a fully-synced machine prints ✓ Everything on vX.Y.Z.

MANDATORY: Execute every Step's bash block literally as written. Do not substitute output from earlier ls/cat in this conversation - .env and other dotfiles are invisible to plain ls. The test -f checks below ARE the contract.

Difference from /lets:init: /lets:init is first-time setup (it also asks config questions and sets up the statusline + beads). /lets:update only syncs what a new release changes - it never prompts and never touches settings.json or beads.

Step 1: Pre-checks

command -v lets >/dev/null 2>&1 || { echo "NO_LETS_BINARY"; exit 0; }
LETS_PROJECT_ROOT=$(git rev-parse --show-toplevel 2>/dev/null) || { echo "NOT_GIT_REPO"; exit 0; }
test -f "$LETS_PROJECT_ROOT/.lets/.env" && echo "ENV_EXISTS" || echo "ENV_ABSENT"

Branch on output:

  • NO_LETS_BINARY → tell user: "lets binary not found on $PATH. Install it — ! curl -fsSL https://raw.githubusercontent.com/restarter/lets-workflow/main/scripts/install.sh | bash (the leading ! runs it in this session; or the same command without ! in a terminal). See the README → Quick Start." NO LETS box. STOP.
  • NOT_GIT_REPO → tell user: "Not a git repository. /lets:update runs inside a LETS project." NO LETS box. STOP.
  • ENV_ABSENT → not initialized. Tell user: "This project hasn't been set up - run /lets:init first." Then still run Step 2 (it reports .env: not-initialized plus the binary/plugin status, which is useful). In Step 4 show the LETS box pointing at /lets:init instead of /lets:start.
  • ENV_EXISTS → normal path. Continue to Step 2.

Read the full file on GitHub · 127 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 · 127 lines · 55 tokens per session scan C 743328181c5d

Subscribe to this mod's changes

update is a command published in the GitHub repository restarter/lets-workflow (17 stars, last pushed 9d ago), licensed MIT. It adds 55 tokens to every session and 2,826 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.