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bvandeusenandClaude Opus 5 bb8013928f feat(telemetry): the readout names rules that were opened and changed nothing (#4213)
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Milestone 419 step 2. Step 1 made an outcome recordable; this makes it
readable. `retrieval_summary`'s rule block gains `applied`, `departed` and
`distinct_rules_acted`, and `_compute_warnings` gains two codes.

TWO CODES, NOT ONE WITH A ZERO IN IT. `read_and_unacted` reports rules that
were opened and left no outcome, against the ones that did. It only fires once
outcomes exist anywhere in the window, because a window with none cannot tell
"every rule was ignored" from "nothing calls `rule_outcome` yet" — and on
every install the day this ships, the truth is the second. Claiming the first
there would be #3311's failure exactly: a statistic that could not vary being
read as a fact about the corpus. The cold case gets its own code,
`outcomes_never_recorded`, whose prose says in as many words that it does NOT
mean the rules were ignored.

`applied` AND `departed` ARE NOT SUMMED. A departure carries the reason the
agent gave and is evidence about the RULE; an application is evidence about
the agent. Folded together they would say only "an outcome exists", which is
true of both and useful about neither. `distinct_rules_acted` counts either,
because for the unacted arithmetic the distinction does not matter.

An outcome is not a pull. The fold branches on OUTCOMES first and never routes
an outcome through the surfaced/ambient split: `source` on an outcome row
names the door the outcome came through, not a ranker, so the ambient
distinction has nothing to say about it. An integration test holds that line —
if an outcome leaked into the pull counters the silently-unchanged rule would
vanish into a compliant-looking total, which is the confusion #4212 was opened
to end.

Verified by lifting the shipped `_compute_warnings` out of source with `ast`
and exercising it against the six populations the new tests assert: cold
instrument, warm instrument, departures-only, full compliance, nothing opened,
and a failed read. The integration tests for the new counts run against real
Postgres in CI — count(distinct) with an IN over an unconstrained column is a
SQL shape a mock would agree with whatever it did, which is what #2663 was.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy
2026-09-21 00:13:45 -04:00
bvandeusenandClaude Opus 5 e2c3a5c2b5 feat(telemetry): retrieval_telemetry says what is wrong (#3431)
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The tool returned distributions and left the reading to the caller, so every
readout was the same four checks done by hand — #3430's baseline, #3835's rule
near-misses, the #1038 rerank gate. Mechanical, and therefore forgettable.

Tonight's acceptance pass on #3898 was the case for doing this. Reading it by
hand meant catching that two surfaces had `covers_window: false`, that
`prompt_rule`'s floor had moved three times inside the window (which made the
readout self-contradictory: deliveries at 0.622 beside refusals at 0.7199),
and that 15 of 20 near-misses were one record against text no operator wrote.
Miss any of those and the obvious conclusion was "the bar is too tight" — a
floor change that would have injected one preference into every notification.

`warnings` is always present and empty when clean, so its emptiness is an
answer rather than a gap. Each entry carries the numbers that produced it:
"345 calls, 0 declined" is the analysis, "check write_path_rule" is an
instruction to redo it. Five codes — cannot_decline, band_hugs_floor,
no_duration, surfaced_never_pulled, unregistered_source.

cannot_decline has three guards, each a bug it would otherwise cause. Asked
surfaces are exempt (a search returning a list every time is working). An arm
not known to log unconditionally is exempt — that is #3497 exactly, where both
rule arms recorded only their hits, so a decline count of zero was a LOGGING
defect and this warning would have sent the reader to a threshold that was
never involved. Unregistered sources get numbers but no verdict.

`silent_surfaces` is the half the rows cannot show: an arm that emitted
nothing is invisible to every row-based check and looks exactly like an arm
that does not exist. It is driven by a new declared registry,
`retrieval_registry.POINTS` — deliberately NOT `retrieval_surfaces.SURFACES`,
which answers "what can be tuned" and excludes the reserved slots because a
budget of 1 is their feature. This answers "what can be measured", and the
reserved slots belong in it precisely because they are judgeable without being
tunable. A test asserts the two cannot drift apart.

The registry test derives sources from the call sites with `ast`, not grep,
and the difference is not theoretical: `wide_net` and `report_preference`
reach their recorder as `source=SOURCE` through a module constant, so a grep
for `source="` is blind to both — the narrowing #3191 warns about. Three sites
pass `source` as a variable and are declared in FAN_OUT_SITES; the test pins
those sites but not the values they can pass, which is why the
`unregistered_source` warning exists to catch the rest at first fire.

Thresholds are settings (rule 25) defaulted so a fresh install with almost no
data produces no warnings at all (rule 115) — a new user's first readout
naming five broken things would be describing the emptiness.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy
2026-09-20 20:24:56 -04:00