24642345674
77%

Ran 20 Apr 2026 12:03AM UTC

Jobs 1

Files 25

Run time 1min

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Committed 20 Apr 2026 12:01AM UTC coverage: 76.548% (+0.1%) from 76.444%

Build # 24642345674

Build Type

push

github

Committed by

web-flow

Commit Message

feat: progressive tool registration — core + hardware tier (#9)

Split the MCP tool surface into two tiers. The core tier — six `serial_*`
tools plus `decode_backtrace` — registers at startup. The hardware tier —
ten `esp_*` tools plus `flash_external` — registers lazily on the first
`serial_list` or `serial_start` call, via `notifications/tools/list_changed`.

Sessions that only decode crash logs never pay for the ESP tool surface.
Empirically validated in the earlier `jae/list-changed-experiment`: Claude
Code honors the notification and surfaces newly-registered tools.

- extract `flash_external` into its own `registerFlashExternalTool`
- gate the hardware tier behind `sync.Once` with `resetHardwareTier` for tests
- trigger unlock from `handleSerialList` and `handleSerialStart`
- tests cover core-only registration, full-tier registration, idempotence,
  and both unlock paths

Coverage Stats

2200 of 2874 relevant lines covered (76.55%)

0.87 hits per line

Coverage Regressions

Lines	Coverage	∆	File
31	81.4	0.17%	mcpserver/serial_handlers.go
2	64.29	14.29%	mcpserver/server.go

Jobs

ID	Job ID	Ran	Files	Coverage
1	24642345674.1	20 Apr 2026 12:03AM UTC	25	76.55	GitHub Action Run

dangernoodle-io / pogopin / 24642345674
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