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
Everything that CAN be validated WITHOUT a model call is validated BEFORE the
operator pays for one (S4.1-analog, SDK-native — Foundry-auth is MAF-specific,
not mirrored). The preflight IS the boundary: it never calls query(), never
validates a credential VALUE online, never touches the network. It returns a
list of structured, actionable Refusals; the CLI exits non-zero on any, so a
broken config stops cheaply instead of on the first billed call.
- preflight.py: run_preflight + `python -m …preflight --profile anthropic`.
Four offline checks:
* credential — ANTHROPIC_API_KEY set + not a placeholder form (the value is
NEVER checked online, only presence, §1); the bundled CLI's own
CLAUDE_CODE_OAUTH_TOKEN also satisfies it (run_s10 relies on it — refusing
would be a false alarm).
* model_map — the requested profile exists and every id it resolves to,
THROUGH resolve_model (so the default fall-through is covered), is real,
not a placeholder left in config.
* sdk — claude_agent_sdk imports (a missing install is a structured refusal
naming `uv sync`, never an ImportError out of the preflight), the run-path
symbols exist, and the bundled Claude Code CLI is present on disk — located
OFFLINE via the SDK package's own files, mirroring the SDK's _find_cli
order (bundled first, then a claude on PATH). Verified against installed
0.2.120 (bundled binary present; the STATE 0.2.110 note was stale).
* termination — the §8 stop contract constructs with positive caps and the
per-call USD belt is positive.
- tests/test_preflight.py: credential contract, placeholder detector, model_map
incl. unknown-profile-without-raising, SDK + bundled-CLI offline probe (with a
monkeypatched missing-SDK refusal), termination, run_preflight aggregation,
CLI both paths, and the offline guards (no network import, no query() call —
AST-based so prose stays green). THREE seams detach-proven RED: credential
branch, placeholder model-id guard, no-network grep-guard.
478→514 green, golden byte-exact, full gate clean (ruff+format+mypy strict,
24 src files), run_s10.py/runs/ byte-untouched. README test-count sync ×2 +
preflight.py module note + load-bearing mention. IKKE-scope (held): the actual
API call (ALDRI — the preflight IS the boundary) and Foundry/Azure auth.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RiTwaKLesgcwXx2mDviqpt
