24406381185
81%

Ran 14 Apr 2026 03:00PM UTC

Jobs 1

Files 22

Run time 1min

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Committed 14 Apr 2026 03:00PM UTC coverage: 72.671% (+0.3%) from 72.39%

Build # 24406381185

Build Type

push

github

Committed by

web-flow

Commit Message

refactor: correct mcp tool annotations and trim footprint (#22)

- set readOnlyHint on get/search/export
- set destructiveHint+idempotentHint on delete
- set idempotentHint on put and config
- leave wrong mcp-go defaults off all other hint fields
- tools/list annotation block shrinks for every tool

Previously, mcp.NewTool hard-wired all four hint fields to non-nil
pointers (readOnlyHint:false, destructiveHint:true, idempotentHint:false,
openWorldHint:true). This was semantically wrong (e.g. read tools should
not have destructiveHint:true) and bloated tools/list by ~250 tokens.

Now we pass mcp.WithToolAnnotation with only the fields we want set, so
the others remain nil and drop from JSON via omitempty. For read tools,
the annotation block collapses from 4 fields to 1. For write tools,
destructiveHint and openWorldHint drop entirely.

Extended TestToolsListFootprint to assert that each tool's annotation
structure contains only expected fields — this is the correctness gate.

Snapshot updated: tools/list was 1065 tokens, now 875 tokens.
Session constant cost drops from 1484 to 1294 tokens.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Coverage Stats

1287 of 1771 relevant lines covered (72.67%)

0.83 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	24406381185.1	14 Apr 2026 03:00PM UTC	22	72.67	GitHub Action Run

dangernoodle-io / ouroboros / 24406381185
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