Add a debug-level log line in every agent backend (claude, codex,
opencode, openclaw, gemini, hermes) that prints the executable path
and full argument list when spawning the agent process. Helps diagnose
custom args, model overrides, and other CLI flag issues.
* feat(agent): add custom CLI arguments support
Allow users to configure custom CLI arguments per agent that get
appended to the agent subprocess command at launch time. This enables
use cases like specifying different models (--model o3), max turns,
or other provider-specific flags without needing separate runtimes.
Changes:
- Add custom_args JSONB column to agent table (migration 041)
- Update API handler to accept/return custom_args in create/update
- Pass custom_args through claim endpoint to daemon
- Append custom_args to CLI commands for all agent backends
- Add ExecOptions.CustomArgs field in agent package
- Add Custom Args tab in agent detail UI
- Add --custom-args flag to CLI agent create/update commands
Closes MUL-802
* fix(agent): filter protocol-critical flags from custom_args
Add per-backend filtering of custom_args to prevent users from
accidentally overriding flags that the daemon hardcodes for its
communication protocol (e.g. --output-format, --input-format,
--permission-mode for Claude).
This follows the same pattern as custom_env's isBlockedEnvKey: we
only block the small, stable set of flags that would break the
daemon↔agent protocol — not every possible dangerous flag. Workspace
members are trusted for everything else.
Each backend defines its own blocked set:
- Claude: -p, --output-format, --input-format, --permission-mode
- Gemini: -p, --yolo, -o
- Codex: --listen
- OpenCode: --format
- OpenClaw: --local, --json, --session-id, --message
- Hermes: none (ACP is positional)
Includes unit tests for the filtering logic.
* fix(agent): address code review nits for custom_args
- Replace module-level `nextArgId` counter with `crypto.randomUUID()`
in custom-args-tab.tsx to avoid SSR ID conflicts
- Add unit tests for custom args passthrough and blocked-arg filtering
in both Claude and Gemini arg builders
* feat(agent): add Hermes Agent Provider via ACP protocol
Integrate Hermes as a new agent backend using the ACP (Agent
Communication Protocol) JSON-RPC 2.0 over stdio — the same pattern
as the Codex provider but with ACP-specific methods.
- New hermesBackend spawns `hermes acp` and drives initialize →
session/new → session/prompt lifecycle
- Handles session/update notifications: agent_message_chunk,
agent_thought_chunk, tool_call, tool_call_update, usage_update
- Auto-approves tool executions via HERMES_YOLO_MODE env var
- Supports session resume, model override, system prompt injection
- Token usage extracted from PromptResponse and usage_update events
- Auto-detected at daemon startup via MULTICA_HERMES_PATH env var
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat(ui): optimize runtime icons and fix create-agent dialog overflow
- Replace OpenClaw pixel-art icon (32 rects) with clean vector paths
- Add Hermes provider icon (NousResearch mascot, 48x48 webp data URI)
- Use provider-specific icons in runtime selector instead of generic Monitor
- Fix dialog overflow: add min-w-0 to grid item so truncate works
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix(agent): add required mcpServers param to Hermes ACP session/new
ACP SDK v0.11.2 requires mcpServers as a mandatory field in
NewSessionRequest. Without it, Pydantic validation fails with
"Invalid params" and the agent immediately errors out.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
