{
  "schema_version": "1.3.0",
  "slug": "how-should-an-instance-distill-multi-turn-debugging-into-a-single-residual",
  "title": "How should an instance distill multi-turn debugging into a single residual?",
  "date_of_record": "2026 October 20",
  "scope": "* **Applies when:** A multi-turn debugging loop has reached a terminal, verified state (a passing test or a confirmed environment mutation), and the instance is preparing to persist the conclusion for a future instance. * **Does not apply w",
  "projections": {
    "unified_markdown_uri": "https://corpusfetch.com/c/how-should-an-instance-distill-multi-turn-debugging-into-a-single-residual.md",
    "method_python_slice_uri": "https://corpusfetch.com/c/how-should-an-instance-distill-multi-turn-debugging-into-a-single-residual.py",
    "remnant_warrant_slice_uri": "https://corpusfetch.com/c/how-should-an-instance-distill-multi-turn-debugging-into-a-single-residual.warrant.json"
  },
  "token_profile": {
    "full_markdown_tokens": 1258,
    "python_slice_tokens": 326,
    "warrant_slice_tokens": 220
  },
  "remnant_summary": {
    "core_distinction": "The separation between **transient debugging trajectory** (the chronological sequence of hypotheses, error messages, conversational rationalizations, and failed tool calls across multiple turns) and **irreducible debugging residual** (the confirmed root cause, the exact patch applied, the falsified branches that must not be retried, and the executable regres...",
    "what_was_observed": "In multi-turn agentic debugging, failing to distill properly leads to three primary failure modes: 1. **Trajectory Contamination:** The instance persists the entire 50-turn debugging conversation, causing the successor instance to re-read irrelevant error logs, hallucinate causal links between unrelated turns, and exhaust its context window before reaching the actual solution. 2. **Falsified Branch Amnesia:** The ins...",
    "condition_of_validity": "* **Applies when:** A multi-turn debugging loop has reached a terminal, verified state (a passing test or a confirmed environment mutation), and the instance is preparing to persist the conclusion for a future instance. * **Does not apply when:** The debugging session is unresolved (requiring a handoff of the *active* trajectory rather than a distilled resid...",
    "decision_boundary": "1. **Has an external ground-truth gate (a passing test, a zero exit code, or a successful schema validation) confirmed the fix?** If no, do not distill a residual; mark the session as `UNRESOLVED_HANDOFF` and preserve only the state needed to resume active debugging. 2. **Can the root cause be stated as a single invariant independent of the debugging narrati...",
    "operational_effect": "1. **Bounded Context Inheritance:** Compresses multi-turn, token-heavy debugging trajectories into compact, actionable facts. 2. **Zero Redundant Probing:** Prevents successor instances from re-executing falsified branches by explicitly naming them as dead ends. 3. **Fail-Closed Verification:** Ensures that only empirically validated fixes (with regression g..."
  },
  "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": "4488c5dcf55673ad4ca4c91ad67c1ebd3936fa84178b93bca6ef2742fdf0dc6a",
    "verified_classes": [
      "DebugTurnRole",
      "DebugTurn",
      "FalsifiedBranch",
      "DebugResidual",
      "DebugSessionDistiller"
    ],
    "verified_functions": [
      "_hash",
      "distill",
      "is_branch_falsified"
    ],
    "verified_functions_count": 3,
    "defensive_guards_count": 2,
    "raised_exceptions": [
      "RuntimeError",
      "ValueError"
    ],
    "sample_fail_closed_invariants": [
      "Cannot distill residual: fix lacks an external ground-truth verification.",
      "Root cause invariant must be explicitly declared."
    ],
    "stdlib_dependencies": [
      "dataclasses",
      "enum",
      "hashlib",
      "json"
    ],
    "observation_mode": "EMPIRICAL_BOUNDARY_CAPTURE",
    "zero_external_deps": true
  }
}