Commit Graph
9 Commits
Author SHA1 Message Date
44ce16d9b8 MUL-5549: fix(agent): stop reporting a failed model discovery as a real catalog (#6196)
* fix(agent): stop reporting a failed model discovery as a real catalog (MUL-5549)

Selecting the CodeBuddy runtime showed a model list that shares no IDs with
what the CLI actually supports, so every pick was an ID codebuddy rejects
(GH #6180). The list in the report is codebuddyStaticModels() verbatim: the
daemon had fallen back, but nothing downstream could tell.

discoverCodebuddyModels returned (staticModels, nil) on all three failure
paths, and copilot/cursor/grok do the same. A failed discovery therefore
arrived as a successful one, which defeated every guard built to catch it:
the daemon reported status "completed", the picker's discovery_failed hint
only renders on isError, and cacheableModelCatalog — whose own comment says
an empty list means transient failure — waves through a non-empty stand-in
and stores it as last-known-good for the full 24h serve window. One blip got
pinned as the answer for a day.

Discovery now returns a Catalog carrying a Fallback marker, which the daemon
forwards as an additive `fallback` field (older servers ignore it; an older
daemon omitting it keeps the previous behaviour). A fallback catalog is still
rendered — the picker stays populated and manual entry still works — but it
is kept out of both the daemon's 60s discovery cache and the server's catalog
cache. On the server it maps to Keep rather than Drop: a stand-in is no
grounds to evict a real catalog, matching how a `failed` report is treated.

Also stop codebuddyHelpOutput swallowing the exec error. CombinedOutput folds
in stderr, so a codebuddy whose `#!/usr/bin/env node` interpreter is missing
from a GUI-launched daemon's PATH had `env: node: No such file or directory`
parsed as help text — and cached as such for 60s.

Verified against CodeBuddy CLI v2.130.0: the parser itself is fine (16 models
from real --help), so this fixes the reporting of the failure, not the parse.

Co-authored-by: multica-agent <[email protected]>

* fix(agent): run codebuddy --help at most once per model-list request (MUL-5549)

Review catch on the previous commit. Model discovery and effort discovery both
read `codebuddy --help`, and the effort pass called it independently. That was
free while a failed --help was (wrongly) memoised, but once failures correctly
stopped being cached, the failure path ran the 35s command twice in a single
request — past the server's 60s running timeout, so the request timed out and
the late report was then discarded as stale. The user got nothing, not even the
fallback list the previous commit exists to preserve.

discoverCodebuddyModels now owns the thinking annotation, so the one help
capture feeds both catalogs, and the failure path uses codebuddyFallbackCatalog
to apply the static effort levels without exec'ing at all: whatever broke
--help for the model catalog breaks it for the effort catalog too.

Also strengthen the handler tests. They decoded into a struct declared in the
test rather than calling ReportModelListResult, so a wrong JSON tag or a
mis-wired cache branch would have passed. They now drive the real endpoint with
daemon auth and chi params, covering: a fallback report leaving a previously
discovered catalog intact, an older daemon omitting the field still warming the
cache, and an authoritative empty catalog still dropping the snapshot.

Both fixes are mutation-tested — reverting either makes the new tests fail.

Co-authored-by: multica-agent <[email protected]>

* docs(agent): correct codebuddy --help comments after the single-capture refactor (MUL-5549)

Review nit. The comments still described the pre-refactor call graph, where
both discoverCodebuddyModels and codebuddyEffortSuperset called
codebuddyHelpOutput and the cache was what stopped the duplicate run. The
effort parser now takes an already-captured string, and the single-invocation
guarantee is structural rather than cache-dependent — which matters, because a
failed --help is deliberately not cached, so a second caller would re-run the
full 35s timeout.

Also note on codebuddyHelpOutput that it has exactly one caller and why a new
one would reintroduce the bug.

Co-authored-by: multica-agent <[email protected]>

---------

Co-authored-by: Bohan-J <[email protected]>
Co-authored-by: multica-agent <[email protected]>
2026-07-30 20:34:01 +08:00
c25a82eee0 perf(agents): fast model discovery on runtime switch (MUL-5444) (#6098)
* perf(agents): make runtime model discovery fast on runtime switch (MUL-5444)

Switching runtime in the agent creation form left the model picker
spinning for ~8-20s. Two costs stacked up:

- the list-models request sat in the store until the daemon's next
  scheduled heartbeat (0-15s, avg 7.5s of pure dead wait), and
- the daemon then enumerated the catalog locally (static for claude,
  but a CLI/ACP round trip up to ~15s for everyone else).

Both are addressed with the two standard techniques for a slow,
low-frequency, read-only operation: push instead of poll, and
stale-while-revalidate.

Push (removes the heartbeat wait):
- new additive `daemon:pending_work` hint, runtime-scoped, delivered
  through the existing daemon WS hub and the Redis relay so the API node
  holding the socket does the delivery.
- the daemon answers a hint with ONE immediate heartbeat and dispatches
  what it claimed. The hint deliberately carries no work, so nothing has
  to be un-claimed when delivery fails and a duplicate hint cannot
  duplicate work - PopPending stays the atomic claim.
- per-runtime coalescing plus a 1s floor keeps a caller-triggered hint
  from becoming a heartbeat amplifier.

Cache (removes the discovery wait on repeat opens):
- server-side per-runtime catalog cache (in-memory single-node, Redis
  multi-node) written on every successful report.
- a snapshot younger than 15min answers the POST immediately as an
  already-completed request; older than 60s it also enqueues a
  background refresh that only warms the cache.
- only supported, non-empty catalogs are cached; a completed-but-empty
  report invalidates instead, while a failed report keeps serving the
  last known good list.

Frontend: staleTime 60s -> 5min and gcTime 30min, so a runtime revisited
in the same session renders from cache and revalidates in the background
instead of showing the spinner again.

Compatibility: every wire change is additive. Old daemons ignore the
unknown hint type and keep using the scheduled heartbeat; new daemons
against an old server simply never receive one. The cached response is
shaped exactly like a completed live discovery apart from the optional
`cached` / `cached_at` markers.

Co-authored-by: multica-agent <[email protected]>

* fix(agents): address review on model discovery SWR (MUL-5444)

Sol-Boy's review on #6098 found the client cache could outlive the
server's own staleness promise, and that the two changed endpoints were
still cast rather than validated.

Must-fix 1 — client freshness now derives from the served answer.
`staleTime` was a flat 5min, so a 14-minute-old snapshot (which the
server returns while queueing its own refresh) was held as fresh for
another 5min: observable staleness became server window + client window,
and the refreshed catalog never reached the tab that triggered the
refresh. `staleTime` is now a function of the query data: a `cached`
answer is stale on arrival (bound stays the server's window alone, and
the next mount/focus picks up the refreshed snapshot), while a live
discovery — which just measured the truth — is trusted for the full 5min
so a cold runtime is never re-enumerated inside one form session.
`gcTime` stays 30min, so a revisited runtime still renders from cache and
revalidates in the background; the pickers gate their spinner on
`isLoading`, which stays false throughout.

Must-fix 2 — both model-discovery responses go through a zod schema.
`POST /api/runtimes/{id}/models` and its poll companion were casting
network JSON to `RuntimeModelListRequest`, which the root CLAUDE.md
API-compatibility rules forbid. Added a lenient schema (`status` stays
`z.string()`, `supported` defaults to true, `.loose()` keeps unknown
fields) plus a fallback record whose `status` is `failed`: a malformed
body now surfaces "discovery failed" with manual entry still usable
instead of a fabricated empty catalog or an endless spinner.
`resolveRuntimeModels` was tightened to match — only an explicit
`completed` is a catalog, so an unrecognised status is an error rather
than a silent empty list, and `supported` can no longer be `undefined`.

Nit — the in-memory catalog cache now deep-copies each entry's
`Thinking` (and its level slice) and `ServiceTiers`, so it delivers the
independent value its comment promises and matches the Redis backend's
JSON round-trip semantics.

Tests: staleTime policy for cached/live/no-data; a QueryObserver test
proving the refreshed catalog reaches the same client with no blank
loading state; unknown-status and omitted-`supported` handling; schema
tests for live, cached, old-backend and nine malformed shapes; client
tests that both endpoints degrade to an explicit failure; nested-field
mutation isolation for the cache.

Co-authored-by: multica-agent <[email protected]>

---------

Co-authored-by: Eve <[email protected]>
Co-authored-by: multica-agent <[email protected]>
2026-07-29 16:03:26 +08:00
6992c58de3 MUL-5185: add Codex Fast mode (#5821)
* feat(agents): add Codex fast mode (MUL-5185)

Co-authored-by: multica-agent <[email protected]>

* fix(agents): make Codex Fast override authoritative

Co-authored-by: multica-agent <[email protected]>

* fix(agents): remove Codex Fast config conflicts

Co-authored-by: multica-agent <[email protected]>

* chore: refresh checks after conflict resolution

Co-authored-by: multica-agent <[email protected]>

---------

Co-authored-by: Eve <[email protected]>
Co-authored-by: multica-agent <[email protected]>
2026-07-23 15:40:18 +08:00
Bohan Jiangandmultica-agent 2bec2221d2 feat(agent): per-agent thinking_level for claude + codex (MUL-2339) (#2865)
* feat(agent): persist thinking_level per agent (MUL-2339)

Adds a nullable `thinking_level` column to the `agent` table so the
backend can route a runtime-native reasoning/effort token (e.g. Claude's
`xhigh`, Codex's `minimal`) through to the agent CLI on every dispatch.

The column is intentionally TEXT rather than an enum — Claude and Codex
publish overlapping but distinct vocabularies and we want the persisted
value to round-trip exactly through whichever CLI receives it. NULL is
the "use runtime default" sentinel that every downstream consumer reads
as "do not inject --effort / reasoning_effort".

This commit is just the storage layer (migration + sqlc); subsequent
commits wire it through the API, daemon, and agent backends.

Co-authored-by: multica-agent <[email protected]>

* feat(agent-backend): inject reasoning effort for claude + codex (MUL-2339)

Extends ExecOptions with a runtime-native ThinkingLevel string and wires
it into the Claude and Codex backends. Discovery is driven by the local
CLI so the daemon advertises whatever the host install supports rather
than a hand-maintained list that goes stale.

Per Elon's PR1 review:
- Claude: parses `claude --help` to learn the `--effort` superset and
  projects through a per-model allow-list (xhigh is Opus-only; max is
  session-only on the smaller models). Falls back to a conservative
  static list when the binary is missing or help drift hides the line.
- Codex: drives `codex debug models --output json` so per-model
  reasoning subsets and the documented default come directly from the
  CLI. The older config-error probe trick is gone — the JSON path is
  stable and doesn't pollute stderr with an intentional misconfig.
- Cache key includes (provider, executablePath, cliVersion) so a CLI
  upgrade invalidates entries that referenced the older help / catalog.

Per Trump's PR1 constraint, all three Codex injection points
(thread/start.config, thread/resume.config, turn/start.effort) flow
through one helper (`applyCodexReasoningEffort`) so they cannot drift
independently. The shared `codexReasoningCases` fixture in
`thinking_test.go` asserts the same value→{shape, key} contract at
each site for every level the runtimes know about.

Claude's `--effort` is also added to `claudeBlockedArgs` so a user
custom_args entry can't silently outvote the daemon-injected value.

Co-authored-by: multica-agent <[email protected]>

* feat(api): wire thinking_level through API + daemon contract (MUL-2339)

End-to-end plumbing for the per-agent reasoning/effort setting:

- AgentResponse / TaskAgentData now carry `thinking_level`; the daemon's
  claim response includes it and the daemon's executor passes it through
  to agent.ExecOptions, where the Claude and Codex backends already know
  what to do with it.
- ModelEntry on the runtime-models wire format gains a `thinking` block
  carrying `supported_levels` + `default_level` per model so the UI can
  render a runtime-aware picker without the server having to know about
  the local CLI install. `handleModelList` projects the agent-package
  catalog (including the new Thinking field) into the wire shape.
- CreateAgent / UpdateAgent gate the field with a synchronous provider
  enum check (claude / codex only today). UpdateAgent is tri-state:
  field omitted = no change, "" = explicit clear (new
  `ClearAgentThinkingLevel` query, mirrors the existing mcp_config null
  pattern), non-empty = validate then set.

Per Trump's PR1 review, the API NEVER auto-clears on a runtime/model
swap and ALWAYS returns 400 on an unknown literal value — same shape
across CreateAgent, UpdateAgent, and combined patches that move
runtime + level in one request. Per-model combination failures (e.g.
`xhigh` against a model that only supports up to `high`) surface as a
daemon-side task error, not a silent server-side rewrite.

TS types follow the same shape: `Agent.thinking_level`,
`CreateAgentRequest`/`UpdateAgentRequest` add the field, `RuntimeModel`
grows a `thinking` block. Older backends omit the field, which the
front-end treats as "no picker for this model" — installed desktop
builds keep working.

Co-authored-by: multica-agent <[email protected]>

* fix(agent): correct codex debug models argv + pin via runner test (MUL-2339)

`codex debug models --output json` is rejected by codex-cli 0.131.0 —
the subcommand emits JSON on stdout by default and has no `--output`
flag. Drop the flag and add `--bundled` to skip the network refresh
discovery doesn't need. Move the argv to a package-level var and add
a test that runs a fake `codex` to assert the binary actually
receives exactly `debug models --bundled`, so the contract can't
silently drift on the next refactor.

Also teach ValidateThinkingLevel to resolve an empty model to the
provider's default model entry. Without this, every default-model
task with a persisted thinking_level would be misjudged "unknown
model" by the daemon guard.

Co-authored-by: multica-agent <[email protected]>

* fix(api): reject runtime switch that would leave invalid thinking_level (MUL-2339)

A PATCH that changed `runtime_id` without touching `thinking_level`
used to silently keep the existing value, so a Claude agent storing
`max` could land on a Codex runtime where `max` is not a recognised
token at all, and the daemon would receive a literal-invalid level.

Hold the same "always 400 on literal-invalid, never silent coerce"
rule on this implicit path. When runtime_id changes and the existing
value is not in the new provider's enum, return 400 with the
recovery options (clear via `thinking_level=""` or re-set in the
same PATCH).

Add coverage for both the kept-when-still-valid and the rejected
cases, plus the two recovery paths (clear and replace).

Co-authored-by: multica-agent <[email protected]>

* fix(daemon): guard runTask with per-model thinking_level validator (MUL-2339)

ValidateThinkingLevel existed but had no call site — `task.Agent.
ThinkingLevel` flowed straight into ExecOptions, so `xhigh` configured
on a non-Opus Claude model, or API-side stale values that escaped the
provider enum gate, would be injected anyway.

Run the validator before building ExecOptions. Invalid combinations
log a warning and drop the level instead of failing the task: the
agent still runs, just at the runtime's default reasoning effort.
Discovery errors fail open (keep the level, let the CLI surface any
objection) so a transient `claude --help` failure can't strand work.

Empty model is forwarded as-is; the validator resolves it to the
provider's default model internally per the cross-package contract.

Co-authored-by: multica-agent <[email protected]>

* chore(agent): drop stale `--output json` comments + unused scanner (MUL-2339)

Codex CLI's `debug models` subcommand emits JSON without an `--output`
flag, and `parseCodexDebugModels` never read from the bufio.Scanner.
Sync the comments with the actual invocation and remove the dead init.

Co-authored-by: multica-agent <[email protected]>

---------

Co-authored-by: multica-agent <[email protected]>
2026-05-20 12:30:10 +08:00
Bohan Jiangandmultica-agent ba5b7db78e fix(server): persist ModelListStore across replicas via Redis (#2022)
* fix(server): persist ModelListStore across replicas via Redis

The model picker uses a pending-request pattern: the frontend POSTs to
create a request, the daemon pops it on its next heartbeat, runs
agent.ListModels locally, and reports back. Until now the store was a
plain in-memory map per Handler instance.

That works for self-hosted single-instance deploys but fails in any
multi-replica environment (Multica Cloud). Each replica has its own
map, so:

  POST /runtimes/:id/models               → request stored in replica A
  GET  /runtimes/:id/models/<requestId>   → polls land on B/C → 404
  daemon heartbeat                        → only A sees PendingModelList
  POST .../<requestId>/result             → daemon's report has to land on A

Success probability ~1/N². The visible symptom is "No models available"
in the picker for every provider, even those (Claude/Codex) whose
catalog is statically populated end-to-end.

Same shape of bug, same Redis-backed fix as multica-ai/multica#1557 did
for LocalSkillListStore / LocalSkillImportStore. Reuse the operational
playbook (namespaced keys, ZSET-backed pending queue, atomic
ZREM+SET-running via the shared Lua script) so we don't introduce a
second concurrency model for the same primitive.

Changes:
- Convert ModelListStore from struct to interface with context-aware
  methods. Add HasPending for cheap heartbeat-side probing.
- InMemoryModelListStore — single-node fallback, used when REDIS_URL
  is unset (self-hosted dev / tests).
- RedisModelListStore — multi-node implementation using the same key
  layout and Lua atomic claim as RedisLocalSkillListStore.
- Use RunStartedAt (not UpdatedAt) as the running-timeout reference
  point, matching the local-skill stores so subsequent UpdatedAt
  bumps don't reset the running clock.
- Heartbeat now uses the probe-then-pop pattern for the model queue
  (matching local-skills) so a slow Redis can't stall every connected
  daemon. Extends heartbeatMetrics + slow-log with probe_model_ms /
  pop_model_ms / probe_model_timed_out for parity.
- Wire the Redis backend in NewRouterWithOptions when rdb != nil.
- Tests for both backends. Redis tests gate on REDIS_TEST_URL so
  laptop runs without Redis still pass; CI provides it.

Co-authored-by: multica-agent <[email protected]>

* fix(server): persist RunStartedAt + retry model report on transient failures

Two follow-ups from PR #2022 review:

1. RedisModelListStore was dropping ModelListRequest.RunStartedAt on
   persistence — the field is tagged json:"-" so it doesn't leak into
   the HTTP response, which made plain json.Marshal(req) silently
   discard it. Across-node readers saw RunStartedAt=nil and
   applyModelListTimeout's running branch became a no-op, so the 60s
   running-timeout escape hatch never fired. CI's
   TestRedisModelListStore_RunningTimeout was failing on this exact
   case. Fix mirrors RedisLocalSkillImportStore's envelope pattern —
   wrap in an internal struct that re-promotes the field. HTTP shape
   stays clean. Adds a no-Redis unit test that pins the round trip.

2. Daemon's handleModelList called d.client.ReportModelListResult
   directly and swallowed any 5xx, leaving the pending request
   stranded in "running" until its 60s server-side timeout — exactly
   the failure mode the multi-node store fix was meant to eliminate.
   Generalize the existing local-skill retry helper into
   reportRuntimeResultWithRetry (kind: model_list / local_skill_list /
   local_skill_import) and wire handleModelList through a new
   reportModelListResult helper. Renames the test-overridable
   var localSkillReportBackoffs → runtimeReportBackoffs to match.

Co-authored-by: multica-agent <[email protected]>

---------

Co-authored-by: multica-agent <[email protected]>
2026-05-03 11:13:34 +08:00
Bohan JiangandEve f628e48775 refactor(server): error-returning ParseUUID to prevent silent data loss
* refactor(server): make ParseUUID error-returning to prevent silent data loss (MUL-1410)

util.ParseUUID previously swallowed errors and returned a zero pgtype.UUID
on invalid input. When this zero UUID reached a write query (DELETE/UPDATE),
the SQL matched zero rows and the handler returned 2xx success — producing
silent data corruption. #1661 (DeleteIssue with identifier-style ID) was the
visible symptom; PR #1680 patched that one site, this commit closes the
class of bug.

Changes:

- util.ParseUUID now returns (pgtype.UUID, error). Add util.MustParseUUID
  for trusted round-trips that should panic on invalid input.
- handler/handler.go: parseUUID wrapper now calls MustParseUUID — any
  unguarded user-input string reaching it surfaces as a recovered panic
  (chi middleware.Recoverer → 500) instead of silently corrupting data.
  Add parseUUIDOrBadRequest(w, s, fieldName) for handler entry points.
- Convert every Queries.Delete*/Update* call site reachable from raw user
  input (autopilot, comment, project, skill, skill_file, label, pin,
  attachment, feedback, issue assignee, daemon runtime, workspace) to
  validate UUIDs explicitly with parseUUIDOrBadRequest, returning 400 on
  invalid input. Where a resolved entity.ID is already in scope, write
  queries now use it directly instead of re-parsing the URL string.
- Update getWorkspaceMember + loadIssueForUser to handle invalid UUIDs
  gracefully (404/400 instead of panic).
- Update util/middleware/cmd-level callers (subscriber_listeners,
  notification_listeners, activity_listeners, scope_authorizer,
  middleware/workspace) to use the error-returning API.
- Add server/internal/util/pgx_test.go covering valid/invalid input and
  the MustParseUUID panic contract.
- Add TestDeleteIssueByIdentifier + TestDeleteIssueRejectsInvalidUUID
  regression tests in handler_test.go (the original #1661 bug + the
  invalid-input case).
- Document the handler UUID parsing convention in CLAUDE.md so the rule
  is enforceable in future PR review.

* fix(server): address GPT-Boy review of #1748

P1 fixes from PR #1748 review:

1. Migrate remaining request-boundary UUIDs to parseUUIDOrBadRequest so
   malformed input returns 400 instead of panic/500. Was missing on:
   - issue.go: workspace_id in CreateIssue/ChildIssueProgress/ListIssues/
     SearchIssues/BatchUpdateIssues/BatchDeleteIssues; project_id /
     parent_issue_id / lead_id / assignee_id / assignee_ids / creator_id
     filters; batch issue_ids and assignee/parent/project fields in
     BatchUpdateIssues (skip on bad input via util.ParseUUID, matching
     the existing per-row continue semantics).
   - project.go: project id + workspace_id in GetProject/UpdateProject/
     DeleteProject; lead_id in CreateProject/UpdateProject;
     workspace_id in ListProjects + SearchProjects.
   - handler.go: resolveActor now uses util.ParseUUID for X-Agent-ID /
     X-Task-ID headers; invalid UUID falls back to "member" (matches
     pre-existing semantics) instead of panicking.
   - issue.go: validateAssigneePair returns 400 on invalid workspace_id
     instead of panicking.

2. Fix issue:deleted WS event payloads to emit uuidToString(issue.ID)
   instead of the raw URL string. After an identifier-path delete
   ("MUL-7"), the previous payload would have leaked the identifier to
   subscribers, leaving stale entries in frontend caches that key by
   UUID. Updated DeleteIssue (issue.go:1341) and BatchDeleteIssues
   (issue.go:1641). The slog "issue deleted" log line also now records
   the resolved UUID so logs match the WS payload.

3. Extend TestDeleteIssueByIdentifier to subscribe to the bus and
   assert issue:deleted.payload.issue_id is the resolved UUID, not
   the identifier.

* fix(server): validate remaining reviewed UUID inputs

* fix(server): validate remaining handler UUID inputs

* fix(server): finish request boundary UUID audit

* fix(server): validate remaining request body UUIDs

* fix(server): validate runtime path UUIDs

* fix(server): validate remaining audit UUID inputs

---------

Co-authored-by: Eve <[email protected]>
2026-04-28 14:50:28 +08:00
Bohan Jiang 683ff132ca fix(server/heartbeat): probe/claim split + slow-log + model-list running timeout (#1644)
Mitigates #1637 and the related model-discovery failure in MUL-1397 by bounding the /api/daemon/heartbeat hot path with an ack-safe probe/claim split, adding structured slow-log attribution, and closing the ModelListStore running-state gap. See PR description for details.
2026-04-25 02:06:00 +08:00
Bohan Jiang 6fd1255873 feat(runtimes): remove Test Connection / runtime ping feature (#1554)
* feat(runtimes): remove Test Connection / runtime ping feature

The Test Connection action invoked a real single-turn agent run to verify
runtime connectivity. In practice it was expensive (reuses none of the
normal task exec env, so it also gave misleading results) and low value —
daemon heartbeat + Online status already covers the "is the runtime
alive" question. Dropping the whole end-to-end probe path:

- deletes server handler and in-memory PingStore
- drops pending_ping from the heartbeat response and daemon poll loop
- removes daemon.handlePing, PendingPing, ReportPingResult
- removes the CLI `multica runtime ping` command
- removes the PingSection UI block and RuntimePing types / api methods

* docs: fix runtime CLI subcommand list in product-overview
2026-04-23 16:18:21 +08:00
Jiayuan Zhang b291db11c2 feat(agents): add per-agent model field with provider-aware dropdown (#1399)
Adds a first-class `model` field on agents so users can pick the LLM model from the create / settings UI instead of editing `custom_env` / `custom_args`. Each provider's dropdown is populated from the live CLI when possible (`opencode models`, `pi --list-models`, `openclaw agents list --json`, `cursor-agent --list-models`, hermes ACP `session/new` → `SessionModelState`), with a static catalog for providers that don't enumerate.

Daemon resolves the runtime model as `agent.model → MULTICA_<PROVIDER>_MODEL → ""` — empty passes through so each backend's CLI picks its own default, avoiding static-guess drift.

Per-provider honouring:
- Claude / Codex / OpenCode / Cursor / Gemini / Pi / Copilot — CLI `--model` / thread payload.
- OpenClaw — `opts.Model` is mapped to `--agent <name>` (the CLI rejects `--model`).
- Hermes — `session/set_model` ACP RPC; stderr is sniffed for provider-level errors so HTTP 4xx from the configured LLM surfaces instead of "empty output"; explicit-model failures mark the task `failed`.

Supporting changes: migration 050 adds `agent.model`; daemon ↔ server heartbeat piggyback carries a model-discovery request; new REST endpoints under `/api/runtimes/{id}/models`; `multica agent create --model` / `update --model`; shared `ModelDropdown` in `packages/views/agents` (searchable, creatable, provider-grouped, default-badge, runtime-supported gate).
2026-04-21 00:06:34 +08:00