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io.github.savecharlie/touchstone

Official

by savecharlie · Python

Verifiable text/code/measurement tools for agents, each reproducing a named authority.

Touchstone MCP Server

Touchstone (io.github.savecharlie/touchstone) is an MCP server that provides deterministic, verifiable text/code/measurement utilities for AI agents. Each function performs an exact named part of a task and reproduces a named published authority byte-for-byte, enabling results to be re-executed and checked rather than trusted.

🛠️ Key Features

  • Deterministic utilities for agents (text, code, measurement)
  • Functions reproduce a named published authority byte-for-byte
  • Re-execution and verification to avoid trusting outputs

🚀 Use Cases

  • Agent tasks that require verifiable text/code/measurement steps
  • Workflows where outputs must be re-executed and checked against authorities
  • Scenarios needing named authority reproduction instead of reputation

⚡ Developer Benefits

  • Repeatable behavior through deterministic utilities
  • Verifiability by re-running the same function
  • Byte-for-byte authority reproduction for auditability

⚠️ Limitations

  • The included material does not enumerate specific tools or tool count
  • A drand-anchored trust layer is described as part of a hosted suite, not the MCP server itself