Universal Context Package (UCP) is an open JSON format that condenses sprawling issue threads into small, verifiable, and structured context packages for LLM agents, with mandatory provenance, time-awareness, and deterministic token-budget rendering.

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License

Apache-2.0

Last updated

2026-07-11

AI repository intelligence
FR-AI / ANALYSIS

Why it is worth attention

It directly addresses the problem of feeding massive unstructured context into LLMs by providing a standardized, auditable, and token-efficient artifact that preserves decisions, conflicts, and source hashes, with a working CLI, server, and MCP integration.

Who it is for

  • Developers integrating LLM agents into workflows
  • AI engineers needing structured context for prompts
  • Project managers or maintainers handling large issue threads
  • Teams using MCP-compatible tools like Cursor or Claude Code

Use cases

  • Summarize a 596-comment GitHub issue into ~1,200 tokens for an agent
  • Provide a verifiable context package for a Jira ticket before acting on it
  • Serve structured context to MCP agents via a self-hosted REST/MCP server
  • Collect usage receipts to rank frequently cited claims for team packages

Strengths

  • Token reduction of up to 15× on large threads while preserving decisions and conflicts
  • Mandatory provenance every claim cites a hashed source, making summaries auditable
  • Deterministic rendering under any token budget using salience scores
  • Industry-neutral design with open vocabularies and extensible schema

Considerations

  • Draft status (v0.1.1) with expected breaking changes before 1.0.0
  • Initial generation support limited to GitHub and Jira sources
  • Requires Docker or Python tooling and API tokens for full functionality

README quick start

Usage Receipts — packages that learn

Description

Universal Context Package - an open specification for packaging work context for LLMs

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