Agent-Native Spreadsheets

How Siglata integrates reactive spreadsheet calculations with AI agent toolchains.

Siglata spreadsheets treat data and agent interactions as first-class citizens. Instead of opaque binary blobs, every sheet is backed by a verifiable, versioned catalog accessible directly via MCP tools and REST APIs.

Architecture

1. Reactive Cell Engine: Computations update reactively with typed schemas and formula validation.
2. Transactional Plan & Apply: Agents do not write blindly; they submit planned changes, review digests, and commit atomically.
3. Auditable History: Every edit records provenance, cryptographic hashes, and actor identity.

Interacting via MCP

Agents use the @siglata/files skill to read and edit spreadsheets:

// Search files in organization
const results = await files.search({ query: "q3-forecast" });

// Propose a cell update
const plan = await files.execute({
  mode: "plan",
  script: "await sheets.updateCell('A1', 42);",
});

// Commit the validated digest
await files.execute({
  mode: "apply",
  digest: plan.digest,
});

Supported Formats

• Native Siglata reactive sheets
• .xlsx import and export with formula preservation
• Parquet and CSV export for data science pipelines