workbook_range_digest

SERVERAinumbers Mcp Apps SOURCEpostoaklabs/ainumbers-mcp-apps

Low RISK CLASS

Category Read

Parameters 52 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/postoaklabs-ainumbers-mcp-apps/workbook-range-digest.md

WHAT IT DOES

What workbook_range_digest does on Ainumbers Mcp Apps

AI agents call workbook_range_digest to retrieve information from Ainumbers Mcp Apps without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`cells`	object	Yes	Map of A1-style cell ref (e.g. "B2") to raw value -- a formula string starts with "=" (e.g. "=SUM(A1:A3)"), anything else is a literal.
`range`	string	Yes	A1-style cell or range reference to digest, e.g. "B2" or "B2:D9".
`semantics`	string	—	Free-text pointer describing what this range means to the consuming policy_parameters.
`provenance`	object	—	Optional provenance metadata, only used when as_artifact is true. Never affects execution_hash.
`as_artifact`	boolean	—	When true, returns a full OpenChainGraph v0.4 artifact (policy_parameters/output_payload/execution_hash/provenance) via the same exportArtifact() path as the to

Parameters from the server's own tool schema.

RISK

Why workbook_range_digest is rated Low

Tool reads and digests spreadsheet cell values without modifying data or executing arbitrary code.

From the tool's definition Spreadsheet-range digest only; evaluates supplied cells; computes canonical values_digest

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs workbook_range_digest safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ainumbers Mcp Apps, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For workbook_range_digest, this is the rule to start with:

workbook_range_digest Allowed

workbook_range_digest is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "workbook_range_digest": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ainumbers Mcp Apps, apply this rule, and every workbook_range_digest call is checked against it from then on.

FAQ

Questions about workbook_range_digest

What does the workbook_range_digest tool do? +

Spreadsheet-range digest only; NOT the general artifact emitter (use emit_chaingraph_artifact to wrap arbitrary computation output — this tool's as_artifact mode covers whole-sheet workbook runs only). Evaluates the supplied cells (same evaluator as workbook_evaluate) and computes a canonical values_digest over one A1-style range (e.g. "B2:D9") -- the exact executionHash(values, {}) path the rest of OCG uses, per chaingraph/workbook/INPUT-MANIFEST.md (WB-2). Returns one ranges[] fragment of the Spreadsheet Input Manifest schema; assemble the full manifest (source.csv_digest, produced_by/produced_at) around it. Same range digested from the same cells in the tools/554 browser workbook always produces the same values_digest -- unless as_artifact is true, in which case it returns a full OCG v0.4 artifact over the WHOLE sheet instead of a single-range fragment (see as_artifact). It is categorised as a Read tool in the Ainumbers Mcp Apps MCP Server, which means it retrieves data without modifying state.

What parameters does workbook_range_digest accept? +

workbook_range_digest accepts 5 parameters: cells, range, semantics, provenance, as_artifact. Required: cells, range. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on workbook_range_digest? +

Register the Ainumbers Mcp Apps MCP server in PolicyLayer and add a rule for workbook_range_digest: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ainumbers Mcp Apps. Nothing to install.

What risk level is workbook_range_digest? +

workbook_range_digest is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit workbook_range_digest? +

Yes. Add a rate_limit block to the workbook_range_digest rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block workbook_range_digest completely? +

Set action: deny in the PolicyLayer policy for workbook_range_digest. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides workbook_range_digest? +

workbook_range_digest is provided by the Ainumbers Mcp Apps MCP server (postoaklabs/ainumbers-mcp-apps). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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