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a2aproject / a2a

Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.

Shell★ 26,028
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github.com/a2aproject/a2a·Indexed at be9f9a4·3mo ago·Up to date with upstream

About this codebase

86 files and 21 symbols in 5 modules, led by Shell (9 files) and Python (2).

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Start reading

  • Knowledge graph86 files and how they depend on each other.→
  • ADR-[number]: [Title]DecisionActive decision, from an architecture decision record.→

Code health

9.4out of 10Excellent

This codebase scores 9.4 out of 10 for code health, which we rate excellent. It also scores maintainability 9.8 and static performance 10.0 out of 10. The three are scored separately and never blended into one number.

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Do next

1 thing worth doing this quarter.

Worth planning

  • Delete 1 unused symbol or file (139 lines)

    Nothing in the graph reaches them, across 1 file; every reader and agent pays to skip them.

    symbols
    1
    lines
    139
    safe to delete
    Yes(inferred)
    Small effort

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  • Add a test coverage report

    Without one, Repowise cannot tell tested code from untested code, so every test-related action says “unknown”.

    line coverage
    Unknown, no report
    Small effort
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How a2aproject/a2a works

Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications. This page is a map of the a2aproject/a2a repository, written primarily in Shell, rebuilt from the source each time it is indexed. Repowise parses every symbol, computes a dependency graph, scores per-file code health from complexity, duplication, test coverage and churn, mines git history for hotspots and ownership, and lifts the architectural decisions into documentation you can read here or query through MCP.

The codebase has 86 files and 21 symbols in 5 modules, led by Shell, Python and JavaScript. Code health is 9.4 out of 10, rated excellent.

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