ollama_summarize_fast

Summarize (fast). Gist of short input (best under ~4k tokens). Use as a decision gate: ‘is this file worth reading in full?’ Summary carries source_preview so you can spot-check fabrication. FRAME CONTRACT (optional): pass frame (the question / section purpose this summary is FOR) and the model first decides whether the input addresses it. Off-topic inputs return summary=‘(off-topic for frame: …)’ with on_topic: false instead of paraphrasing unrelated content. Omitting frame preserves the legacy result shape.

Parameters

Parameter	Type	Required	Default	Description
text	string	yes	—	Text to summarize (best under ~4k tokens — use summarize_deep for longer inputs).
max_words	integer	no	—	Target summary length in words (default 80).
frame	string	no	—	The question / section purpose / topic this summary is FOR. When supplied, the summarizer first decides whether the text addresses the frame; if not, it refuses to paraphrase off-topic content and surfaces on_topic: false in the result.
model	string	no	—	Optional per-call model override. When provided, overrides the tool’s tier-resolved model for this call. The tier’s timeout (TIER_TIMEOUT_MS) still applies. On timeout, fallback uses the tier-resolved model, NOT the override. Use for receipt-backed orchestration that requires explicit model identity (e.g., research-os reviewer profiles).

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": {
    "text": {
      "type": "string",
      "minLength": 1,
      "description": "Text to summarize (best under ~4k tokens — use summarize_deep for longer inputs)."
    },
    "max_words": {
      "description": "Target summary length in words (default 80).",
      "type": "integer",
      "minimum": 10,
      "maximum": 400
    },
    "frame": {
      "description": "The question / section purpose / topic this summary is FOR. When supplied, the summarizer first decides whether the text addresses the frame; if not, it refuses to paraphrase off-topic content and surfaces `on_topic: false` in the result.",
      "type": "string"
    },
    "model": {
      "description": "Optional per-call model override. When provided, overrides the tool's tier-resolved model for this call. The tier's timeout (TIER_TIMEOUT_MS) still applies. On timeout, fallback uses the tier-resolved model, NOT the override. Use for receipt-backed orchestration that requires explicit model identity (e.g., research-os reviewer profiles).",
      "type": "string",
      "minLength": 1
    }
  },
  "required": [
    "text"
  ]
}

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/summarizeFast.ts · registration: src/index.ts

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