update

plan.md

@@ -12,6 +12,54 @@ single executor behavior
 single rune behavior
 single hidden damage formula
 decorative world state
+Compliance Model Anti-Collapse
+The framework must also resist collapse of the compliance model.
+
+The implementor may not replace a specification obligation with a representative approximation that merely resembles the obligation.
+
+Every acceptance requirement must have all of:
+
+1. A measured artifact.
+2. A provenance chain from the measured artifact to the run that produced it.
+3. A merge-blocking enforcement point.
+4. A failure condition that blocks acceptance if the artifact or provenance is absent.
+
+No requirement may be satisfied by:
+
+sample
+summary
+approximation
+representative subset
+default profile
+proxy metric
+regenerated artifact
+local-only executable
+documentation claim
+
+unless this specification explicitly defines that weaker substitute as acceptable for that requirement.
+
+The compliance path must be:
+
+Specification requirement
+Mandatory enforcement mechanism
+Merge blocked if absent
+
+The compliance path must not be:
+
+Specification requirement
+Representative approximation
+Evidence of approximation
+
+Examples of forbidden substitutions:
+
+100% reference/runtime comparison may not be replaced by comparison of base executions only.
+Required artifacts may not be replaced by partial artifacts.
+Full trace information may not be replaced by a summarized proxy unless that proxy is explicitly named as the acceptance artifact.
+Persisted expectations may not be replaced by expectations regenerated in the same run.
+Merge-blocking enforcement may not be replaced by a manually runnable local binary.
+
+If an implementation uses a weaker substitute, the correct result is not partial credit. The correct result is failure of the corresponding acceptance gate.
+
 Hard CI Gates
 Minimum per full CI run:
 
@@ -281,4 +329,4 @@ the optimized runtime matches the reference runtime
 collapse attacks fail to simplify the universe
 mutation tests kill every generated simplification
 generated programs produce diverse, causal, replayable behavior
-No spell list. No templates. No cosmetic runes. The deliverable is a Rust engine whose tests make a fake universe fail.
+No spell list. No templates. No cosmetic runes. The deliverable is a Rust engine whose tests make a fake universe fail.