Closes the corpus flywheel. ADR-0055 Phase B emits DiscoveryCandidate
JSONL to the discovery sink, but until now there was no operator-facing
view: candidates accumulated to disk, no one grepped them, the system's
"I would have grounded this if I had a chain" signal went into a void.
P1.1 — Discovery aggregator (teaching/gaps.py).
Pure reader over the discovery-sink monthly-rollover layout
(<root>/<YYYY>/<YYYY-MM>.jsonl). aggregate_gaps(root, since,
sample_limit) groups emitted candidates by (subject, intent) cell
and returns a deterministic ranked tuple of Gap records.
- count: total emissions
- boundary_clean_count: subset whose boundary_clean flag held
(refusal/hedge-tainted emissions split out so operators can filter)
- sample_candidate_ids: up to N retained ids per cell, sorted
- months_seen: every month token where the cell appeared
--since YYYY-MM filters by file naming convention (no timestamp
dependency). Malformed lines silently skipped. Default root:
teaching/discovery_log.
CLI: core teaching gaps [--root PATH] [--since YYYY-MM] [--top N]
[--sample-limit N] [--json]
P1.2 — Auto-promotion queue (teaching/promotion.py).
promote_gaps(gaps, threshold, include_tainted) lifts cells whose
effective count meets the threshold into GapPromotion records.
- Default mode: boundary_clean_count gates promotion. Tainted-only
cells (count > 0 but all emissions refusal/hedge-tainted) do not
auto-promote — those may indicate the prompt hit a safety axis,
not a curriculum gap.
- include_tainted=True counts every emission (operator override).
- Threshold must be >= 1 (zero threshold defeats the queue).
- queue_id is stable + deterministic (gap:<intent>:<subject>@<N>).
- No content synthesis — promotion never invents connective or
object; only an operator can author a complete chain via the
propose/replay/accept pipeline.
CLI: core teaching queue [--threshold N] [--include-tainted]
[--root PATH] [--since YYYY-MM] [--json]
Operator workflow (closed loop):
operator → core chat # asks question
← cold turn emits DiscoveryCandidate
operator → core teaching gaps --top 10 # ranked gaps
operator → core teaching queue --threshold 3 # auto-promoted
operator → authors candidate JSONL
operator → core teaching propose <path> # replay gate runs
operator → core teaching review <id> --accept # corpus mutates
24 new tests (13 gaps + 11 promotion), all pure / no I/O dependencies,
fast (<1s combined). Full lane: 1933 passed, 2 skipped.
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