{
  "schema_version": "1.3.0",
  "slug": "before-what-pre-flight-and-dry-run-gates-must-an-instance-stage-bulk-or-irreversible-mutations-to-prevent-unrecoverable-blast-radius-cascade",
  "title": "Before what pre-flight and dry-run gates must an instance stage bulk or irreversible mutations to prevent unrecoverable blast-radius cascade?",
  "date_of_record": "2026 October 20",
  "scope": "* **Applies when:** Executing `DELETE`, `DROP`, `TRUNCATE`, bulk `UPDATE`, recursive filesystem deletions, mass API state mutations, or irreversible cloud infrastructure changes. * **Does not apply when:** Performing strictly read-only quer",
  "projections": {
    "unified_markdown_uri": "https://corpusfetch.com/c/before-what-pre-flight-and-dry-run-gates-must-an-instance-stage-bulk-or-irreversible-mutations-to-prevent-unrecoverable-blast-radius-cascade.md",
    "method_python_slice_uri": "https://corpusfetch.com/c/before-what-pre-flight-and-dry-run-gates-must-an-instance-stage-bulk-or-irreversible-mutations-to-prevent-unrecoverable-blast-radius-cascade.py",
    "remnant_warrant_slice_uri": "https://corpusfetch.com/c/before-what-pre-flight-and-dry-run-gates-must-an-instance-stage-bulk-or-irreversible-mutations-to-prevent-unrecoverable-blast-radius-cascade.warrant.json"
  },
  "token_profile": {
    "full_markdown_tokens": 2058,
    "python_slice_tokens": 371,
    "warrant_slice_tokens": 220
  },
  "remnant_summary": {
    "core_distinction": "Autonomous agents frequently execute database `UPDATE`/`DELETE` queries, recursive filesystem removals, cloud resource terminations, or bulk API mutations directly against live state based on a single unverified predicate. A catastrophic blast-radius cascade occurs when an instance **executes an irreversible or multi-record mutation without first evaluating ...",
    "what_was_observed": "In production infrastructure orchestration, database maintenance, and automated cleanup workflows, instances operating without pre-flight dry-run gates exhibit four primary failure modes: 1. **Empty Predicate Wildcard Expansion:** An environment variable or filter parameter evaluates to an empty string (`rm -rf /var/data/${SUBDIR}/*` or `DELETE FROM jobs WHERE tenant_id = ''`), expanding the target scope from a singl...",
    "condition_of_validity": "* **Applies when:** Executing `DELETE`, `DROP`, `TRUNCATE`, bulk `UPDATE`, recursive filesystem deletions, mass API state mutations, or irreversible cloud infrastructure changes. * **Does not apply when:** Performing strictly read-only queries (`SELECT`, `ls`, `git status`) or single-record idempotent creations in ephemeral scratch memory. * **Non-binding ou...",
    "decision_boundary": "1. **Do you know the exact number of rows, files, or resources your command is about to modify or delete?** If you have not run a read-only count or `--dry-run` first, stop and enumerate the targets before executing the write. 2. **What happens if one of the filter variables in your command is an empty string?** Explicitly assert that every scoping variable ...",
    "operational_effect": "1. **Zero Unbounded Wipes:** Empty predicates and runaway row counts are caught during read-only dry-run enumeration before any state is modified. 2. **Guaranteed Rollback Lineage:** Pre-image snapshots of matched records are persisted to disk prior to mutation. 3. **Canary Blast Containment:** Post-condition failures halt execution at `N = 1` rather than co..."
  },
  "matched_failure_symptoms": [
    "DUPLICATE_MUTATION_OR_BILLING"
  ],
  "composition_edges": {
    "primary_domain": "code_mutation_and_ast_patching",
    "upstream_precondition_residuals": [
      "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",
      "https://corpusfetch.com/c/across-what-encoding-and-canonicalization-boundaries-must-an-instance-normalize-identifiers-and-paths-to-prevent-equivalence-collision-and-bypass.md"
    ],
    "downstream_consequence_residuals": [
      "https://corpusfetch.com/c/across-what-concurrent-pipe-drain-and-ring-buffer-boundaries-must-an-instance-consume-subprocess-stdout-and-stderr-to-prevent-os-pipe-deadlocks-and-unbounded-output-oom.md",
      "https://corpusfetch.com/c/across-what-w3c-baggage-allowlist-and-pii-sanitization-gates-must-an-instance-propagate-cross-service-context-to-prevent-header-amplification-and-external-data-exfiltration.md"
    ],
    "co_occurring_sibling_residuals": [
      "https://corpusfetch.com/c/along-what-complexity-bounds-must-an-instance-arrest-premature-abstraction-and-speculative-over-engineering-when-synthesizing-solutions.md",
      "https://corpusfetch.com/c/along-what-decimal-and-integer-scaling-boundaries-must-an-instance-isolate-financial-and-precision-arithmetic-to-prevent-floating-point-drift-and-rounding-loss.md"
    ]
  },
  "empirical_verification_warrant": {
    "status": "AST_AND_INVARIANT_VERIFIED",
    "syntax_valid": true,
    "code_sha256": "3b18b1296e4c5b02d6f328a15e0b112385beca1cebb6daa5e56a163947af982e",
    "verified_classes": [
      "BlastRadiusExceededError",
      "PreFlightExecutionReceipt",
      "PreFlightMutationGate"
    ],
    "verified_functions": [
      "execute_guarded_mutation"
    ],
    "verified_functions_count": 1,
    "defensive_guards_count": 4,
    "raised_exceptions": [
      "BlastRadiusExceededError"
    ],
    "sample_fail_closed_invariants": [
      "Rejected mutation: empty scope_parameters dictionary."
    ],
    "stdlib_dependencies": [
      "dataclasses",
      "json",
      "pathlib",
      "typing"
    ],
    "observation_mode": "EMPIRICAL_BOUNDARY_CAPTURE",
    "zero_external_deps": true
  }
}