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Author SHA1 Message Date
bvandeusenandClaude Opus 5 512d0326a0 fix(telemetry): a floor that moved inside the window makes the band check a comparison of two populations (#4225)
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`retrieval_telemetry(days=30)` reported, for write_path_rule:

  "the weakest tenth of what this arm returns scores 0.6984, only -0.0216
   above its floor of 0.72"

A negative distance above something. The tenth percentile of what an arm
RETURNED cannot sit below the floor that gates what it may return — not
inside one population.

MEASURED CAUSE. write_path_rule's floor was 0.68 until 2026-09-02, when
2385100 (#3318) raised the shipped default to 0.72. The window opened
2026-08-22, so six days of it are calls made under the old bar; top_score.min
for the surface is exactly 0.68, the old bar still in the sample.

AND THE CHANGE LEFT NO TRACE THE READOUT COULD SEE. retrieval_tuning_events
records dial turns — a person or a model choosing a number. It was silent
about the other way a floor moves: somebody edits floor_default and ships it.
retrieval_tuning_history returned {"events": []} and retrieval_surfaces said
last_change: {}, source: "shipped". All true, and all of it silent about a
floor that had in fact moved.

THE RAISE ANNOUNCED ITSELF. A LOWERED FLOOR WOULD NOT: the gap comes out
comfortably positive and reads as a clean bill of health on a sample that
half predates the bar being judged. Both directions are now pinned.

So the check is SUSPENDED, not softened. band_hugs_floor asks whether the
scores are piled on the bar; that needs the scores and the bar to come from
the same regime. Where they do not, the honest answer is that this sample
cannot say, plus the date after which one can — floor_moved_mid_window
replaces band_hugs_floor for that arm and never accompanies it. A reader told
a number is unavailable goes and gets one; a reader handed a qualified number
uses it.

NO MIGRATION. `actor` is Text with no CHECK precisely so a new kind of actor
is not one — the model's own comment says so, and this is the case it
anticipated. "release" joins "model" and "human". user_id is already
nullable, which is right: no user did this, a release acts on every account
that has not overridden the dial, and a row per user would both multiply and
misattribute it. Both readers now take the newest of (this user's change, the
release's).

THE FIRST SIGHTING IS A BASELINE, written with old_value NULL. Nothing moved;
the row exists so the next release has a predecessor. That null is
load-bearing: floor_moves_since asks for old_value IS NOT NULL, so a fresh
install's baseline does not silently retire the check on every new install.

UI: the tuning history rendered actor as `human ? 'you' : 'Claude'`, so a
release row would have told the operator that Claude moved a floor it never
touched — the one failure the actor column exists to prevent. Three-way now,
with an unknown value printing itself rather than guessing.

Recorded at startup, inline and awaited. What #4181 cost three hours was
concurrency — a background task racing the hook for the same pool. Sequential
creates no contention, and this is twelve single-row reads. It must finish
before serving because a readout served before the change was recorded is the
exact answer this exists to stop giving.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy
2026-09-21 01:17:37 -04:00
bvandeusenandClaude Opus 5 def144df06 fix(tests): a Result's .all() is sync, and the module has a fourth tool (#4104)
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Two failures in the tests added with the step, both mine.

`make_mock_session` is an AsyncMock and every child of an AsyncMock is one too,
so leaving `.all` as it came handed `migrate_floor` a coroutine where it reads a
list — the same trap the helper's own docstring already flags for `add`.

And the registration test enumerated three tools by name, which is exactly what
it is for: `migrate_retrieval_floor` made it four.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy
2026-09-17 12:47:57 -04:00
bvandeusenandClaude Opus 5 381c90ca7e feat(retrieval): the wide net becomes a pull — fifty candidates, no bar (#4103)
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Milestone 416 step 5. The operator's compromise — "if you're worried
about excluding potentially important data let limit it to 50 entries"
— moved to the surface where it is safe. Fifty in the push would be
milestone 394 with extra steps; fifty in a pull crowds nothing out.

`what_might_apply(query)` returns ranked rule candidates with NO
threshold. The moment it serves is the one where the caller does not
trust a bar to decide for them, so it does not have one — every row
carries its score and the reader judges.

WHY IT IS NOT A BIGGER `limit` ON `search`

`_search_rules` returns statement, why and how_to_apply in full, on the
stated reasoning that a caller who went looking deserves the whole
record. That is the DEEP pull and should stay that way. This is the
SHALLOW one — many candidates, each just enough to decide whether to
open it. Opposite trade-offs, so it is a second tool.

THE PREMISE THE STEP GOT WRONG

The task said fifty "costs nothing". `_rule_hint_line` had already
measured otherwise: ~143 tokens per line once the trigger is rendered,
and #3855 tripled trigger lengths across the corpus. Fifty is ~7,000
tokens — cheap next to an arm firing before every Bash call, but not
free, and a tool promising a free wide net gets reached for casually
and then regretted.

So it reuses the graduated shape #3851 measured for the push: the top
few carry their trigger whole, the rest carry a cut of it. TRUNCATED,
never dropped — the trigger is what lets a reader judge without
opening, and a teaser without one is just an id. The cut borrows
`_goal_line`'s technique including the fallback that matters (#4036):
`textwrap.shorten` returns a bare "…" for one unbroken word.

TELEMETRY

Logged under its own pull source, asserted absent from both the tunable
push registry and AMBIENT_SOURCES. That guard is load-bearing right
now: the push arms' near-miss distributions are the evidence #4121
argues from, and a pull folded into them would move those numbers.

INSTRUCTION SURFACES

The using-scribe reflex and the MCP instructions both pointed at
`search(content_type="rule")` for the consequential moment — the deep
tool, at the moment you want breadth. They now point here, and keep
`search` for reading a rule you already suspect. Written as a practice
rather than a prohibition (rule 165).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy
2026-09-17 12:18:25 -04:00
bvandeusenandClaude Opus 5 ca49a46c23 feat(retrieval): the model moves its own floors, and says why (#4102)
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Milestone 416 step 4's write half. `retrieval_surfaces.py` made the six
push arms describe their `{floor, budget}` the same way; this adds the
three MCP tools that let the model READ that and change it, and the
backup sections that carry the reasons.

The operator's decision, which this implements:

    "the floor should be chosen and adjusted by the model using it… the
    user should be able to touch it but the model should be the thing
    handling it 9 times out of 10."

WHY A REASON IS REQUIRED, AND WHY THE TOOL ARGUES AGAINST PERCENTILES

The milestone originally listed self-tuning as a non-goal on one
measured case, and that case is now the tool's docstring rather than a
prohibition: `report_preference` logged 69 consecutive declines with
the refused record 0.0006 under the bar, and every percentile said
"lower it". The refused record was rule 77 "Extract intent from loose
phrasing" matched against a query about report layout — a false
positive. Lowering would have attached that rule to every completion
report ever written.

What separated the statistic from the correct action was OPENING the
record. So `tune_retrieval` refuses a blank or perfunctory reason,
tells the caller to read `retrieval_telemetry(near_miss_samples=5)`
and the record ids it names, and carries that 69-decline example — an
abstract warning loses to a number. The non-goal that survives is
*statistical* auto-tuning; nothing here reads a percentile and picks a
value.

BACKUP (v16), which is what CI caught

`retrieval_tuning_events` was neither backed up nor excluded, and
#2293's guard said so. It is backed up: `settings` already carried the
numbers, so dropping this would restore an install with six moved
dials and no argument for any of them — precisely the state the table
exists to prevent, and worse now that the model is the one moving
them. One `_retrieval_tuning_event_rows` builder called from both
exporters (snippet #2851); `user_id` travels because a restore has to
remap it, which is why the row builder is not the model's `to_dict()`.
`surface` is a registry name rather than a foreign key, so the history
survives a restore into an install whose ids all differ.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy
2026-09-17 11:28:17 -04:00