ollama_hypothesis_drill

Hypothesis drill. DRILL. Zoom into ONE hypothesis from an existing incident_pack artifact. No re-running triage + brief. Pass artifact_slug (from ollama_artifact_list), hypothesis_index (0-based into that artifact’s root_cause_hypotheses), optional extra_artifact_dirs[]. Server loads the artifact, extracts the targeted hypothesis + its linked evidence, and runs a Deep-tier focused sub-brief. Returns {parent_artifact_slug, drilled_hypothesis:{statement, confidence, evidence_cited:[{id, preview}], supporting_reasoning, ruled_out_reasons?}, other_hypotheses_summary:[{index, summary}], weak}. Invalid index → HYPOTHESIS_INDEX_INVALID with the valid range. Non-incident or missing slug → ARTIFACT_NOT_FOUND with a next-step hint.

Parameters

Parameter	Type	Required	Default	Description
artifact_slug	string	yes	—	Slug of an existing incident_pack artifact. See ollama_artifact_list for available slugs.
hypothesis_index	integer	yes	—	0-based index into the artifact’s root_cause_hypotheses array.
extra_artifact_dirs	string[]	no	—	Extra read-only search dirs (same semantics as artifact_list / artifact_read).

Full input schema

The JSON Schema below is generated from the same zod schema the server validates against at the wire — it cannot drift from runtime behavior.

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "artifact_slug": {
      "type": "string",
      "minLength": 1,
      "description": "Slug of an existing incident_pack artifact. See ollama_artifact_list for available slugs."
    },
    "hypothesis_index": {
      "type": "integer",
      "minimum": 0,
      "maximum": 9007199254740991,
      "description": "0-based index into the artifact's root_cause_hypotheses array."
    },
    "extra_artifact_dirs": {
      "description": "Extra read-only search dirs (same semantics as artifact_list / artifact_read).",
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 1
      }
    }
  },
  "required": [
    "artifact_slug",
    "hypothesis_index"
  ]
}

Envelope

Every tool returns the standard envelope — tier_used, model, tokens_in/tokens_out, elapsed_ms, backend provenance, warnings. See Envelope & tiers.

Source

Schema + handler: src/tools/hypothesisDrill.ts · registration: src/index.ts

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