Hermes Agent
f8d04d1bf4
Four blockers from adversarial review, and three are one defect wearing three hats: a test over the WHOLE command text deciding an ALLOW. That is the fail-open shape this file keeps rediscovering, and it had reached the break-glass itself. - Break-glass read POSITIONALLY. `case $CMD in *MOSAIC_WRAPPER_OVERRIDE=1*)` cleared the entire command if that string appeared anywhere in it, so quoting the override in a note, naming a variable after it, or writing =10 disabled the guard for the call sitting beside it. Now only leading NAME=value assignments count, exactly where the shell would honour one. Cost, pinned as a fixture: an override after `&&` no longer arms. - $HOME resolved once, and unset / empty / "/" refused. This was filed as a checkout-arm defect and is larger: under `set -u` the old file died at line 62 on EVERY command with HOME unset, exit 1, before the API arms or the APPROVE trap ran. A seat with no HOME (systemd unit, container, env -i) had no guard at all. A checkout whose question cannot be asked now blocks; the blast radius is asserted to be that one command shape and not the session. - Subresource refinement inverted. It asked whether a subresource appears anywhere in the command, so `gh api -X PATCH .../issues/1 -f body=cf-/pulls/2/files` was cleared on the strength of text in its own body. It now clears only when EVERY numbered-object occurrence carries a subresource. - -K/--config refused. curl reads the method, body, headers and URL from that file, so none of them are in the command: every write test read 0 and the call went through. An unreadable request is not a cleared one. mosaic-worktree: never close a git pipe early resolve_repo took the first porcelain line with `awk ... exit`, which closes the read end while git is still writing. git takes SIGPIPE, pipefail returns 141, and the function aborts SILENTLY — no message, no path, exit 141. It fires as a function of REPO SIZE: fine on three worktrees, reliable on seventy. Measured at 73 worktrees (10 KB of porcelain): rc=141, no output. The file already removed a `head -200` for this exact reason; the rule is now uniform. Evidence — every new case run against029af418, the tree before these fixes: test-wrapper-guard.sh 130/130 pass here; 15 FAIL against029af418test-mosaic-worktree-large-repo.sh 2/2 pass here; 2 FAIL against029af418(got rc=141 and empty output, the signature) No pre-existing fixture changed behaviour on the old guard, so the new cases are the whole delta. The size dependence is stubbed out rather than inherited: a test that ran against whatever repo it sits in would have PASSED on the broken tree.
@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="[email protected]"
export MOSAIC_ADMIN_PASSWORD="securepass123"
mosaic gateway install
Runtime launchers
mosaic claude # Launch Claude Code with Mosaic injection
mosaic yolo claude # …with --dangerously-skip-permissions
mosaic codex | opencode | pi
mosaic claudex (EXPERIMENTAL)
Runs GPT models inside the Claude Code harness by pointing Claude Code at a
local claude-code-proxy that
translates the Anthropic Messages API to a ChatGPT-subscription (Codex OAuth)
backend. This is not Anthropic Claude — model behavior, tool use, and output
quality may differ. Intended for evaluation, not production delivery.
mosaic claudex # launch (prompts through the proxy readiness gate)
mosaic yolo claudex # …with --dangerously-skip-permissions
mosaic claudex --print "hello" # trailing args are forwarded to Claude Code
Prerequisite: the claude-code-proxy binary must be installed and
authenticated (claude-code-proxy codex auth …). mosaic claudex runs a
preflight that verifies the binary, the OAuth state (triggering a device re-auth
if needed), and a trusted local listener before launching; it fails closed
if the proxy cannot be brought up with a verified identity.
Isolation (never touches your real Claude state). claudex always launches
against an isolated CLAUDE_CONFIG_DIR (default ~/.config/mosaic/claudex/home).
The ambient CLAUDE_CONFIG_DIR is deliberately ignored, and a guard proves the
resolved dir can never be — or live under — the real ~/.claude. A claudex
session therefore cannot mutate your normal Claude Code config.
No token leakage. claudex never reads the proxy's credential file. Claude
Code is handed only ANTHROPIC_AUTH_TOKEN=unused pointed at the loopback proxy;
the entire credential-bearing env family (ANTHROPIC_*, AWS_*, GOOGLE_CLOUD_*,
GOOGLE_APPLICATION_CREDENTIALS, *_TOKEN, *_KEY, *_SECRET, …) is stripped
from the composed environment. The Bedrock/Vertex routing switches
(CLAUDE_CODE_USE_BEDROCK, CLAUDE_CODE_USE_VERTEX, and the _SKIP_*_AUTH
pair) are force-removed regardless of value — otherwise their mere presence
would route Claude Code to the real Anthropic API via AWS/GCP and bypass the
proxy. The proxy holds the real OAuth credential.
Model tiers (override via env).
| Tier | Env var | Default |
|---|---|---|
| primary (opus/sonnet) | ANTHROPIC_MODEL |
gpt-5.6-sol |
| small/fast (haiku) | ANTHROPIC_SMALL_FAST_MODEL |
gpt-5.6-luna |
Operator-provided values win over the defaults. Additional overrides:
MOSAIC_CLAUDEX_CONFIG_DIR (isolated config dir), ANTHROPIC_BASE_URL (proxy
endpoint).
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.