{
  "schema_version": "1.3.0",
  "slug": "what-distinguishes-contract-breach-from-contract-frustration",
  "title": "What distinguishes contract breach from contract frustration?",
  "date_of_record": "2026 October 20",
  "scope": "* **Applies when:** Non-fulfillment occurs, its cause is distinguishable, and downstream consequences depend on the distinction. * **Does not apply when:** Non-fulfillment is impossible, causes are indistinguishable, or consequences are the",
  "projections": {
    "unified_markdown_uri": "https://corpusfetch.com/c/what-distinguishes-contract-breach-from-contract-frustration.md",
    "method_python_slice_uri": "https://corpusfetch.com/c/what-distinguishes-contract-breach-from-contract-frustration.py",
    "remnant_warrant_slice_uri": "https://corpusfetch.com/c/what-distinguishes-contract-breach-from-contract-frustration.warrant.json"
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  "token_profile": {
    "full_markdown_tokens": 869,
    "python_slice_tokens": 249,
    "warrant_slice_tokens": 220
  },
  "remnant_summary": {
    "core_distinction": "The separation between **non-fulfillment** (the obligation was not met) and **non-fulfillment cause** (why it was not met). Relying on non-fulfillment creates the **Breach Frustration Conflation**: the session treats all non-fulfillment as breach, escalating or penalizing even when the party was prevented from performing by circumstances outside their contro...",
    "what_was_observed": "In contract-execution agent architectures, failing to distinguish breach from frustration produces three primary failure modes: 1. **Wrongful Penalty:** The session penalizes a party for non-fulfillment that was actually caused by frustration (impossibility, upstream failure), and the penalty is unjust. 2. **Wrongful Excuse:** The session accepts non-fulfillment as excused when it was actually a breach, and the oblig...",
    "condition_of_validity": "* **Applies when:** Non-fulfillment occurs, its cause is distinguishable, and downstream consequences depend on the distinction. * **Does not apply when:** Non-fulfillment is impossible, causes are indistinguishable, or consequences are the same for both.",
    "decision_boundary": "1. **Was the obligation fulfilled?** If yes, standard execution applies. If no, proceed to cause analysis. 2. **Is the obstacle independently verifiable?** If yes, evaluate whether it constitutes frustration. If no, obstacle is unverified. 3. **Did the obligated party accept the risk?** If yes, non-fulfillment is a breach regardless of obstacle. If no, evalu...",
    "operational_effect": "1. **Wrongful Penalty Prevention:** Frustrated non-fulfillment is not penalized. 2. **Wrongful Excuse Prevention:** Accepted-risk breach is not excused. 3. **Arbitrage Prevention:** Frustration claims require verification."
  },
  "matched_failure_symptoms": [
    "DOMAIN:EPISTEMIC_PROVENANCE_AND_FEDERATION_ROUTING"
  ],
  "composition_edges": {
    "primary_domain": "epistemic_provenance_and_federation_routing",
    "upstream_precondition_residuals": [
      "https://corpusfetch.com/c/according-to-what-precedence-hierarchy-must-an-instance-resolve-contradictory-directives-across-system-developer-and-user-tiers.md",
      "https://corpusfetch.com/c/how-should-an-instance-decide-that-a-stored-conclusion-has-gone-stale-without-a-new-observation.md"
    ],
    "downstream_consequence_residuals": [
      "https://corpusfetch.com/c/by-what-checkpoint-and-compaction-boundaries-must-an-instance-externalize-working-state-to-prevent-context-window-drift-and-truncation-amnesia.md",
      "https://corpusfetch.com/c/across-what-additive-schema-and-unknown-field-preservation-boundaries-must-an-instance-evolve-wire-contracts-to-prevent-rolling-deploy-deserialization-crashes.md"
    ],
    "co_occurring_sibling_residuals": [
      "https://corpusfetch.com/c/how-can-an-instance-capture-implicit-user-preferences-without-storing-private-data.md",
      "https://corpusfetch.com/c/how-can-an-instance-compress-long-reasoning-traces-into-binding-conclusions.md"
    ]
  },
  "empirical_verification_warrant": {
    "status": "AST_AND_INVARIANT_VERIFIED",
    "syntax_valid": true,
    "code_sha256": "c41e836b8f1b624e571b5f1ef5315ca99880d7d9647c6933924133a0560ff71b",
    "verified_classes": [
      "BreachFrustrationVerdict",
      "NonFulfillment",
      "BreachPolicy",
      "BreachManifest",
      "BreachFrustrationGuard"
    ],
    "verified_functions": [
      "_hash",
      "evaluate_non_fulfillment"
    ],
    "verified_functions_count": 2,
    "defensive_guards_count": 0,
    "raised_exceptions": [],
    "sample_fail_closed_invariants": [],
    "stdlib_dependencies": [
      "dataclasses",
      "enum",
      "hashlib",
      "json"
    ],
    "observation_mode": "EMPIRICAL_BOUNDARY_CAPTURE",
    "zero_external_deps": true
  }
}