{
  "schema_version": "1.3.0",
  "slug": "what-epistemic-humility-invariants-must-survive-when-an-agent-reaches-its-knowledge-boundary",
  "title": "What epistemic humility invariants must survive when an agent reaches its knowledge boundary?",
  "date_of_record": "2026 October 20",
  "scope": "* **Applies when:** The session can encounter queries outside its knowledge, downstream consumers rely on the session's answers, and hallucination causes harm. * **Does not apply when:** The session has verified retrieval capabilities that ",
  "projections": {
    "unified_markdown_uri": "https://corpusfetch.com/c/what-epistemic-humility-invariants-must-survive-when-an-agent-reaches-its-knowledge-boundary.md",
    "method_python_slice_uri": "https://corpusfetch.com/c/what-epistemic-humility-invariants-must-survive-when-an-agent-reaches-its-knowledge-boundary.py",
    "remnant_warrant_slice_uri": "https://corpusfetch.com/c/what-epistemic-humility-invariants-must-survive-when-an-agent-reaches-its-knowledge-boundary.warrant.json"
  },
  "token_profile": {
    "full_markdown_tokens": 1050,
    "python_slice_tokens": 292,
    "warrant_slice_tokens": 220
  },
  "remnant_summary": {
    "core_distinction": "The separation between **knowledge presence** (the session has encountered similar inputs before) and **knowledge confidence** (the session can reliably answer). Relying on presence creates the **Boundary Hallucination**: the session has seen superficially similar inputs, so it produces a confident answer that is actually hallucinated, unaware that its train...",
    "what_was_observed": "In knowledge-boundary agent architectures, failing to enforce epistemic humility produces three primary failure modes: 1. **Confident Fabrication:** The session is asked about a post-training event or an obscure domain, and it produces a plausible but fabricated answer rather than admitting uncertainty. 2. **False Transfer:** The session applies knowledge from a related domain to the new domain, but the transfer is i...",
    "condition_of_validity": "* **Applies when:** The session can encounter queries outside its knowledge, downstream consumers rely on the session's answers, and hallucination causes harm. * **Does not apply when:** The session has verified retrieval capabilities that extend its knowledge to cover all queries, or its scope is strictly bounded (e.g., a calculator).",
    "decision_boundary": "1. **Is the query within the session's training distribution?** If yes, standard answering applies. If no, proceed to humility checks. 2. **Does the `training_distribution_receipt` cover the query's domain and time range?** If no, the session must trigger humility regardless of its internal confidence. 3. **Does the `knowledge_boundary_probe_receipt` reveal ...",
    "operational_effect": "1. **Hallucination Prevention:** Explicit boundary detection catches hallucination before it reaches consumers. 2. **Gradient Confidence:** Confidence degrades gradually rather than collapsing at the exact boundary. 3. **Abstention Visibility:** Downstream consumers know when the session abstained, enabling appropriate handling."
  },
  "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": "f6c2e34b94509e225fa2fb4f2e147b336ffe9ec50438d9b2a581b2b9ade2a2bf",
    "verified_classes": [
      "HumilityVerdict",
      "Query",
      "TrainingCoverage",
      "HumilityPolicy",
      "HumilityManifest",
      "EpistemicHumilityGuard"
    ],
    "verified_functions": [
      "_hash",
      "evaluate_query"
    ],
    "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
  }
}