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bvandeusen 0d4b155699 feat(telemetry): pull-through per surface, not just per corpus (#3311)
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The readout already grouped usage by source — `group_by(event, source)` —
and the loop directly below it threw the source away, collapsing every
surface into one corpus-wide ratio. So the question a threshold is
actually tuned against, "is THIS surface worth its noise", could not be
asked of any surface, while the data to answer it sat in the table.

`usage.by_source` reports notes_surfaced / notes_pulled / pull_through
per surface. The grain is the note, not the call: a pull records the
door it came through, not the surface that led there, so grouping the
pulled rows by source would answer a different question. Joining
surfaced rows to pulled rows on note_id answers this one without the
session identity #2085 declined to invent — at the cost of being an
upper bound per surface, which the docstring says where it is read.

Ambient surfaces report counts and a null ratio: nothing chose those
records, so "surfaced often, opened never" is not a judgment about them.
A surface that genuinely produced nothing reports 0.0, which must not
look like the null.

The join is guarded separately from the two reads above it. #2663 was a
novel SQL shape the database rejected inside a broad except; this is the
novel shape here, and it must not take down two readouts that work.

Tests are integration for that same reason — a mock passes on a query
Postgres refuses. They pin the distinct-first property (three surfacings
of one note are one note), the ambient null, and the LIKE escape, since
an unescaped `mcp_%` also matches `mcpXget_note` and nothing else in the
payload would show the difference.
2026-08-31 15:52:17 -04:00
bvandeusenandClaude Fable 5 64bfa5725f feat(telemetry): a read surface over retrieval_logs — the tuning loop had no read half (#2975)
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`retrieval_logs` was write-only. `record_retrieval` inserted rows and nothing
in the tree ever selected from them: the only `select()` over RetrievalLog
lived in a test. So #1038's gate — "build the reranker once telemetry shows
precision is the bottleneck" — was unsatisfiable by construction, and the one
real tuning decision on record (the 0.68 write-path threshold, #2223) had to
be reached by hand-probing the live instance with eight payloads. This adds
the half that was missing.

`retrieval_summary(user_id, days=30)` returns two aggregates side by side,
each read from the table built for it — NOT a join. NoteUsageEvent's docstring
is explicit that the two are complements ("RetrievalLog tunes the threshold,
this tunes the corpus") and that RetrievalLog's JSONB `result_ids` cannot be
indexed at the per-note grain, so correlating through it would be both slower
and less honest than reading each source directly. That corrects the approach
sketched on the task.

  - `sources`, per surface: calls, zero_result_calls, cleared_threshold (how
    often the best hit beat the threshold in force for THAT call), the
    top_score spread as p10/p50/p90/min/max, avg_result_count, p90 duration.
    Zero-result calls are counted apart from low-scoring ones — they are a
    different failure and averaging them together would hide both.
  - `usage`, from note_usage_events: ranked surfacings, ambient surfacings,
    and pulls split into `pulled_by_agent` / `pulled_by_human`.

That split is not decoration. NoteUsageEvent's own comment says the mcp_/rest_
prefix is load-bearing and names #1038 while saying so: "is this dead weight?"
is answered by any pull, "was that injected line useful?" only by an agent
pull. `pull_through` exists to answer the second, so it counts agent pulls
over ranked surfacings; both halves ship so the first stays answerable.

Two things the code made me get right rather than guess:

  - Distinct-note counts get their own queries. `count(distinct note_id)` per
    (event, source) group cannot be summed across groups — a note surfaced by
    two sources is one distinct note and would be counted twice. A wrong
    number labelled "distinct" is worse than no number.
  - No CASE in the GROUP BY. #2663 is the bug where a second case() rendered
    its own expanding bind names, Postgres rejected the query, a broad except
    swallowed it, and every counter read zero in production while mocked tests
    passed. Grouping on raw `source` and classifying in Python cannot fail
    that way. For the same reason the readout distinguishes `read_failed` from
    an empty window, and its tests are integration against real Postgres —
    percentile_cont ... WITHIN GROUP only proves it parses against a database.

Exposed as the `retrieval_telemetry` MCP tool, added to `_READ_ONLY_TOOLS`:
it mutates nothing, but its name carries no read prefix, so the completeness
test cannot derive it and it would otherwise have failed closed for read-only
keys in silence — the same reason `enter_project` is spelled out there. Docs
updated to name both exceptions rather than leave the rule looking derivable.

Scoped to the caller's own telemetry: a retrieval log records what one user's
agent asked for, query text included, and is not a shared record kind — the
owner filter is the whole access rule, not a shortcut past access.py.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-23 22:48:54 -04:00
bvandeusenandClaude Fable 5 bbee0d0db1 refactor(tests): one definition each for the copied fixtures and fakes (#2825, milestone 296 area 1)
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The shape ledger showed the same test scaffolding defined over and over:
_bind_user x12 (byte-identical), _dispose_engine x10 in three wordings,
_no_supersession x3, _make_mock_session x7 in three subsets, a get-or-create
User helper x2 (+3 inlined), and fifteen hand-rolled MagicMock note factories
each re-explaining the same "an auto-MagicMock attribute is truthy" hazard
(note 2109).

Now: conftest.py carries _bind_user / _dispose_engine / _no_supersession as
opt-in fixtures (pytestmark = usefixtures(...) per module, so unit tests pay
nothing), and tests/helpers.py carries make_mock_session(), ensure_user() and
fake_note(**attrs) — the hazard documented once, real values on every
attribute the product reads. Call sites were rewritten by AST so titles with
dashes and commas survived; the three SimpleNamespace _note stand-ins that
only feed a single function stay local.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-21 11:03:48 -04:00
bvandeusenandClaude Opus 4.8 807f478cac feat(search): retrieval telemetry — log every semantic retrieval
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Add retrieval_logs (migration 0068) + services/retrieval_telemetry with a
fire-and-forget record_retrieval(), wired into the MCP search tool
(source=mcp_search) and the REST search route (source=rest_search). Captures
query, effective params, and the per-result score distribution so KB-injection
thresholds can be tuned from data rather than guessed.

Scribe: project 2, milestone 93, task 1032.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Xz4j1H7pjYSjKsEpgcNH5E
2026-06-22 20:10:15 -04:00