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multica/server
Bohan Jiang fa076d38f2 MUL-2778 feat(agent): wire mcp_config through OpenClaw runtime (#3450)
* MUL-2778 feat(agent): wire mcp_config through OpenClaw runtime

The MCP config tab (#3419) lets admins save mcp_config on an agent, and
recent work (#3439) plumbed it through the three ACP runtimes. OpenClaw
still ignored the field, leaving the Tab silently inert for any
OpenClaw-backed agent.

Translate the agent's Claude-style `{"mcpServers": {...}}` into the
per-task OpenClaw wrapper's `mcp.servers` block — OpenClaw resolves MCP
via its own config schema rather than ExecOptions, so the existing
OPENCLAW_CONFIG_PATH preparer is the right seam. Fail closed on
malformed JSON / entries missing `command` or `url`, matching the
fail-closed posture the preparer already uses for the agents.list step.
Null / absent mcp_config leaves the wrapper free of an `mcp` key so the
user's global mcp.servers flows through untouched; an explicit empty
managed set (`{}` / `{"mcpServers":{}}`) is honoured as "admin saved no
servers" mirroring `hasManagedCodexMcpConfig`.

Strict-mode replacement (drop user-only servers entirely) would require
OpenClaw to do a per-key replace rather than a deep merge at
`mcp.servers`; the comment documents that caveat rather than relying on
undocumented behaviour.

Also adds `openclaw` to `MCP_SUPPORTED_PROVIDERS` so the MCP Tab
actually surfaces in the agent overview pane, and pins the new
visibility case with a renderPane test.

Co-authored-by: multica-agent <github@multica.ai>

* MUL-2778 fix(agent): make openclaw mcp_config strict-replace via sanitized snapshot

Elon flagged on #3450 that the previous wiring let user-only mcp.servers
leak through the wrapper's `$include` of the live user config: deep-merge
at `mcp.servers` keeps user-only names, and the strict-empty case
(`{ "mcpServers": {} }`) silently inherited user globals.

Switch the strict-replace path to write a sanitized snapshot of the
user's fully resolved config (via `openclaw config get --json`) with the
`mcp` block stripped, then have the wrapper `$include` the snapshot
instead of the live user file. With the user's `mcp` gone from the
$include resolution, the wrapper's `mcp.servers` is the only definition
the embedded OpenClaw sees — managed only, including the explicit empty
set.

The snapshot lives in envRoot at 0o600 alongside the wrapper so the GC
reaper sweeps it with the rest of the task scratch, and no extra
OPENCLAW_INCLUDE_ROOTS entry is needed (same-dir $include).

Fail-closed on `config get --json` errors so the daemon never silently
falls back to the leaky $include path. The inherit branch (null
mcp_config) still uses the live user file directly — no extra CLI
roundtrip and no snapshot is written.

New tests pin the contract Elon's review required:

- TestPrepareOpenclawConfigStrictReplacesUserMcpServers: user has
  global_one + shared, managed has shared + managed_only → wrapper has
  exactly {shared (managed value), managed_only}; global_one does NOT
  leak; snapshot file has the user's `mcp` stripped while preserving
  gateway / providers / API keys.
- TestPrepareOpenclawConfigStrictEmptyManagedSetDropsUserMcp: empty
  managed set drops user's global_one (both `{}` and
  `{"mcpServers":{}}` cases).
- TestPrepareOpenclawConfigNullMcpConfigKeepsUserInclude: null path
  inherits the live user config, writes no snapshot, makes no extra CLI
  call.
- TestPrepareOpenclawConfigFailsClosedOnResolvedConfigError: errors
  during `config get --json` surface; no stale wrapper or snapshot.
- TestPrepareOpenclawConfigManagedSetFreshInstall: fresh install with
  managed mcp_config skips the snapshot dance entirely.

Also tightens en + zh-Hans MCP Tab copy to mention OpenClaw goes via the
per-task wrapper, and to use OpenClaw's own `transport` field rather
than Claude's `type` for HTTP/SSE entries.

Co-authored-by: multica-agent <github@multica.ai>

* MUL-2778 fix(agent): narrow openclaw snapshot strip to mcp.servers only

Elon's third-round must-fix: the previous strict-replace snapshot deleted
the entire `mcp` block, which wiped out non-server settings under `mcp`
like `sessionIdleTtlMs`. Those are documented OpenClaw config keys
(https://docs.openclaw.ai/gateway/configuration-reference#mcp) outside
the MCP Tab's scope — the agent's saved mcp_config only manages server
definitions, so other `mcp.*` tuning the user set must survive.

Replace the blanket `delete(resolved, "mcp")` with a stripUserMcpServers
helper that:

- deletes only `mcp.servers` when `mcp` is an object
- drops the parent `mcp` key only when the object is empty after the
  strip (so we don't emit `mcp: {}` placeholders)
- leaves non-object `mcp` values untouched (we only know how to strip
  servers from the documented shape)

Pinned with TestPrepareOpenclawConfigStrictPreservesNonServerMcpKeys:
user resolved has both `mcp.sessionIdleTtlMs: 300000` and
`mcp.servers.global_one`; after the strict path runs the snapshot
keeps the TTL and drops the servers map, and the wrapper's
`mcp.servers` is exactly the managed set with no leak.

Co-authored-by: multica-agent <github@multica.ai>

---------

Co-authored-by: J <j@multica.ai>
Co-authored-by: multica-agent <github@multica.ai>
2026-05-28 18:43:02 +08:00
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