Oekt 17 found the class on four named files. This sweep ENUMERATES it: 42 negative
substring assertions across 21 test files (STATE's "~34 across 23" was a premise --
measured, it is 42/21). Sixteen of them measured an absence without ever having
shown presence; all sixteen now carry a positive control asserting the searched-for
string PRESENT in the source artifact, in EXACTLY the form the negative looks for.
Files touched: test_costsim, test_loop, test_okf (3 sites), test_preflight,
test_run_entrance, test_s10_run_layer, test_sdk_version_guard, test_simulation
(2 sites), test_step1_expel, test_step5_refine, test_step7_async_loop,
test_step8_promotion, test_valuereport.
VALUE-PROOF (green-without / red-with, per the oekt-17 rule that a detach proof is
not a value proof). Seven source/fixture mutations, each making the negative vacuous:
M1 verdict fixture loses the realization signal VALUE-PROVEN
M2 decoy fixture loses its text VALUE-PROVEN
M3 renderer stops emitting typed section headings VALUE-PROVEN
M4 promotion stops writing the marker VALUE-PROVEN (pass 2)
M5 fold stops rendering the realization surface VALUE-PROVEN
M6 report stops labelling the cost section VALUE-PROVEN
M7 preflight stops importing the SDK VALUE-PROVEN
M4 needed pass 2: a PRECEDING assertion caught the same mutation, hiding the new
control behind it -- the oekt-17 lesson reproduced. The remaining nine controls are
vacuity guards (non-emptiness / form-presence) whose mutation would have to break
the source artificially; they are stated as guards, not claimed as value-proven.
MEASURED FINDING (test_loop): the FIRST-RUN-MARKER negative cannot be given a
positive control at all. Within a run only the CHECKER's critique is fed back --
the proposer's own prior reasoning crosses no prompt boundary, not even within a
run. So that negative holds trivially. Left in place with the limitation stated in
the test rather than dressed up as a controlled seam; the CRITIQUE negative beside
it IS controlled and is the real seam.
Mutations were in-place on src/ and shared/ with original bytes restored and
sha-verified; git status clean before and after. Suite 688 -> 688 (assertions added
inside existing tests, no new test cases). ruff + mypy --strict green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017Vc5PmZGjwuJypdhzKnJa5
Step 1 of the loop, built from method-spec §3 alone:
- okf.py (pure stdlib): frontmatter parse, deterministic/tolerant/boundary-checked
index navigation, bundle_context rendering with type:verdict exclusion
- experience.py: CandidateFeatures from the IR projection, §4.2 id minting,
structural ranking (0.60·Jaccard + 0.25·type + 0.15·magnitude bucket),
first-write-wins store, bundle seeding with the realization marker,
fold-before-generation (empty retrieval → base unchanged)
Load-bearing (§11), each proved RED on detach: verdict-layer exclusion, fold,
seed learning fields, agent-toolkit import guard. 76/76 without an API key;
ruff + mypy --strict clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QdSfQdND84oeq2mbjueLTS
