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T10: gate review and first compression pass

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All four gate criteria met. False Adaptation Rate 0/7 with 12 of 13 mechanical
mutations absorbed. 178 tests pass. TD-WP-0002 finished.

Fitness loop closed via F-0003: actor isolation was a property of scenarios
written to expose it, not of runs. Actors now carry an automatic private
marker and the runner examines all of them on every scenario, with two
permanent regressions behind it.

Compression - six abstractions removed, each declared and never used:
Verdict.SUSPICIOUS (a verdict no oracle could emit), Step.expect_refusal,
ActorIsolationError, World.seed, EvidencePack.latest, Trajectory.method.

F-0008: Temperature may be redundant. Crystallization was built without it
ever being consulted; measured stability of realization did the work, and is
observed rather than declared. Gated for removal alongside energy.py.

INTENT_CHANGED and REALIZATION_FAILED had never run. Both now have
purpose-built cases and a test that fails if a seventh outcome is added
without one.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 1629012@bnt-lap001
Assistant-Session: 78d4fb13-8a1e-474b-87a3-9b9261c49a39
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tegwick 2026-08-23 00:39:36 +02:00
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research/concepts/fitness-map.md
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@ -1,6 +1,6 @@
# Concept ↔ Implementation Fitness Map
**Updated:** 2026-08-23 (TD-WP-0002-T09)
**Updated:** 2026-08-23 (TD-WP-0002-T10)
Traces each important concept to the implementation, experiment and evidence that
support it. **Unsupported entries are the point of this map** — a concept with no
@ -29,7 +29,7 @@ were aspirational, not evidenced.
| Concept | Level | Implementation | Experiment | Evidence | Open question |
|---|---|---|---|---|---|
| `C-use-case` | C1 | `intent.py` | — | — | Is a use case expressible without leaking mechanics? |
| `C-actor-isolation` | C1 | `world.py` | E-001 | `td://self/actor-isolation` | **F-0003** — only observable when the scenario plants canaries. |
| `C-actor-isolation` | **C2** | `world.py`, `runner.py` | E-001 | `td://self/actor-isolation`, examined every run | **F-0003 resolved** — automatic canaries; observable on every scenario. |
| `C-semantic-action` | **C2** | `actions.py`, `agentic.py` | E-001 (partial) | T07 arm comparison | **F-0005** — supported only where stable identifiers are absent. Narrower than the concept model claims. |
| `C-oracle-independence` | **C2** | `runner.py`, `oracles.py` | E-001, E-003 | — | Independence of components ≠ independence of belief. (H-004) |
| `C-evidence-pack` | C1 | `evidence.py` | — | `td://self/evidence-reproducibility` | Verdicts are reproducible from S3 alone, on passing and failing runs. |
@ -39,9 +39,9 @@ were aspirational, not evidenced.
| `C-crystallization` | **C2** | `crystallization.py` | E-002 | T09 agreement matrix | Fidelity supported; **F-0007** — the economic case is unmeasurable with a token-free runtime. |
| `C-intent-provenance` | C1 | `provenance.py` | E-003 | `td://self/intent-independence` | Constrains provenance, not quality. Accepted residual. |
| `C-lineage` | C1 | `scenario.py`, generated headers | E-002 | generated module docstring | Parent pointer plus provenance in the artefact; no graph. |
| `C-energy` | C0 | `energy.py`, capture only | — | — | Dormant by decision. (H-005) |
| `C-temperature` | C0 | — | — | — | Deferred. No implementation planned in TD-WP-0002. |
| `C-confidence` | C0 | — | — | — | Deferred. |
| `C-energy` | C0 | `energy.py`, capture only | — | none | Dormant. **Gated**: if the next workplan ends with no decision having used the history, remove. |
| `C-temperature` | **C0 — under review** | — | — | none | **F-0008** — crystallization was built without it; measured stability did the work. Gated for removal. |
| `C-confidence` | C0 | — | — | none | Declared, unimplemented, never consulted. Same position as `C-temperature` without a built alternative. |
| `C-campaign` | C0 | — | — | — | Deferred. |
| `C-metabolism` | C0 | — | — | — | Deferred. Depends on C-energy. |
| `C-retirement` | C0 | — | — | — | Deferred. Depends on C-energy. |
@ -58,6 +58,13 @@ validated. They are revisited at T10, where the question is not "when do we buil
these" but "does the evidence justify keeping them in the model at all".
**Implementation orphans** — none. Every module in `src/testdriver/` traces to a
concept above. `energy.py` is the one to watch: it exists solely to capture
events for a dormant hypothesis, and if T10 finds no use for the history it
should be removed rather than kept out of sentiment.
concept above.
**Removed at T10** (compression pass — see the gate review § 3):
`Verdict.SUSPICIOUS`, `Step.expect_refusal`, `ActorIsolationError`,
`World.seed`, `EvidencePack.latest()`, `Trajectory.method`. Each was declared and
never used; `SUSPICIOUS` was additionally a verdict no oracle could emit.
**Gated for removal**: `C-temperature` (F-0008) and `energy.py`. Both survive the
current review on the strength of being cheap, not of being used. If the next
workplan closes without a decision consulting either, they go.