92cbe42fc1
A3a/A3b ship a per-agent persona contract that the launcher composes from process.env.MOSAIC_AGENT_CLASS (compose-contract -> readPersonaContractBlock, launch.js). generateAgentEnv already writes MOSAIC_AGENT_CLASS to agents/<name>.env, but start-agent-session.sh only re-exported MOSAIC_AGENT_NAME into the pane snippet — never the class. The pane inherits the tmux SERVER environment, not this script's env nor the systemd unit's EnvironmentFile, so the class set in the .env was invisible in-pane. The launcher then saw an undefined class and silently injected NO persona contract: every fleet agent came up class-less while `fleet ps` reported healthy. The comms block kept working only because it keys on MOSAIC_AGENT_NAME (which IS re-exported). Fix: re-export MOSAIC_AGENT_CLASS into PANE_SHELL_SNIPPET exactly as MOSAIC_AGENT_NAME, %q-quoted (empty/unset class -> '' is a harmless no-op, matching readPersonaContractBlock's empty-class contract). Verified live: a relaunched agent now carries MOSAIC_AGENT_CLASS in its pane env and the matching `# Persona Contract (<class>)` block in its composed prompt. Adds a regression guard to test-start-agent-session.sh asserting the pane snippet exports both MOSAIC_AGENT_NAME and the per-agent MOSAIC_AGENT_CLASS. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
@mosaicstack/mosaic
CLI package for the Mosaic self-hosted AI agent platform.
Usage
mosaic wizard # First-run setup wizard
mosaic gateway install # Install the gateway daemon
mosaic config show # View current configuration
mosaic config hooks list # Manage Claude hooks
Headless / CI Installation
Set MOSAIC_ASSUME_YES=1 (or ensure stdin is not a TTY) to skip all interactive prompts. The following environment variables control the install:
Gateway configuration (mosaic gateway install)
| Variable | Default | Required |
|---|---|---|
MOSAIC_STORAGE_TIER |
local |
No |
MOSAIC_GATEWAY_PORT |
14242 |
No |
MOSAIC_DATABASE_URL |
(none) | Yes if tier=team |
MOSAIC_VALKEY_URL |
(none) | Yes if tier=team |
MOSAIC_ANTHROPIC_API_KEY |
(none) | No |
MOSAIC_CORS_ORIGIN |
http://localhost:3000 |
No |
Admin user bootstrap
| Variable | Default | Required |
|---|---|---|
MOSAIC_ADMIN_NAME |
(none) | Yes (headless) |
MOSAIC_ADMIN_EMAIL |
(none) | Yes (headless) |
MOSAIC_ADMIN_PASSWORD |
(none) | Yes (headless) |
MOSAIC_ADMIN_PASSWORD must be at least 8 characters. In headless mode a missing or too-short password causes a non-zero exit.
Example: Docker / CI install
export MOSAIC_ASSUME_YES=1
export MOSAIC_ADMIN_NAME="Admin"
export MOSAIC_ADMIN_EMAIL="admin@example.com"
export MOSAIC_ADMIN_PASSWORD="securepass123"
mosaic gateway install
Hooks management
After running mosaic wizard, Claude hooks are installed in ~/.claude/hooks-config.json.
mosaic config hooks list # Show all hooks and enabled/disabled status
mosaic config hooks disable PostToolUse # Disable a hook (reversible)
mosaic config hooks enable PostToolUse # Re-enable a disabled hook
Set CLAUDE_HOME to override the default ~/.claude directory.