molecule-core/platform/internal/router
Molecule AI Backend Engineer 57f5659f74 feat(platform): per-workspace token tracking + GET /workspaces/:id/metrics (#593)
Migration 026 adds workspace_token_usage table (uuid pk, workspace_id FK with
CASCADE, period_start TIMESTAMPTZ, input_tokens, output_tokens, call_count,
estimated_cost_usd NUMERIC(12,6), updated_at) with a UNIQUE index on
(workspace_id, period_start) for day-granularity upserts.

A2A proxy (proxyA2ARequest) now spawns a detached goroutine after each
successful call to extractAndUpsertTokenUsage, which:
  1. Parses usage.input_tokens / usage.output_tokens from result.usage
     (JSON-RPC wrapper) with fallback to top-level usage (direct Anthropic).
  2. Calls upsertTokenUsage — INSERT ... ON CONFLICT DO UPDATE so multi-
     call days accumulate correctly. Estimated cost = input×$0.000003 +
     output×$0.000015 (Claude Sonnet default; adjustable in a later phase).
  Token tracking never blocks the critical A2A path.

New endpoint: GET /workspaces/:id/metrics (wsAuth — WorkspaceAuth bearer
bound to :id). Returns:
  {"input_tokens":N,"output_tokens":N,"total_calls":N,
   "estimated_cost_usd":"0.000000","period_start":"...","period_end":"..."}
404 if workspace missing. Period is current UTC day.

11 new tests (4 handler + 7 parse-unit); 19/19 packages pass.

Closes #593

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-17 05:29:10 +00:00
..
canvas_proxy_test.go fix(test): wrap httptest.ResponseRecorder with CloseNotify for canvas proxy tests 2026-04-16 05:40:17 -07:00
canvas_proxy.go fix(security): strip Authorization + Cookie headers in canvas reverse proxy (closes #451) 2026-04-16 11:00:43 +00:00
router.go feat(platform): per-workspace token tracking + GET /workspaces/:id/metrics (#593) 2026-04-17 05:29:10 +00:00