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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

[2.6.0] - 2026-03-27

Added

PolicyClient: RFC-005 PDP integration via Option B for embedded policy evaluation (#10)

Fixed

Proto Descriptor Collision: Hardened AddSerializedFile error handling with eager registration to win descriptor pool race (#11)
PyPI Wheel Packaging: Force-include nested proto files in wheel and sdist builds (#11)

[2.5.0] - 2026-03-16

Added

MCPServerIdentity.connect(): Zero-config server identity setup with ServerBadgeKeeper (#7)
Stdio Credential Passing: Badge credentials passed in _meta for stdio transports (#7)

Fixed

Improve binary install experience with better error messages (#8)

[2.4.0] - 2026-02-04

Changed

Version Alignment: Synchronized version with capiscio-core v2.4.0

0.1.0 - 2026-01-15

Added

Initial release of capiscio-mcp
RFC-006: MCP Tool Authority and Evidence implementation
- @guard and @guard_sync decorators for tool protection
- GuardConfig for configuration
- compute_params_hash() for deterministic parameter hashing
- evaluate_tool_access() low-level API
RFC-007: MCP Server Identity Verification implementation
- verify_server() and verify_server_sync() functions
- verify_server_strict() for strict verification
- parse_http_headers() and parse_jsonrpc_meta() helpers
- VerifyConfig for configuration
Core connection management
- Embedded mode: automatic binary download and management
- External mode: connect to user-managed core via CAPISCIO_CORE_ADDR
- Process supervision with automatic restart
- Health checks and version compatibility
MCP SDK integration (optional)
- CapiscioMCPServer for server-side integration
- CapiscioMCPClient for client-side integration
Type definitions
- Decision, AuthLevel, DenyReason enums
- ServerState, ServerErrorCode enums
- TrustLevel enum (0-4)
Error types
- GuardError for denied tool access
- ServerVerifyError for verification failures
- CoreConnectionError for connection issues
- CoreVersionError for version mismatches
Comprehensive test suite with 80%+ coverage target

Dependencies

Requires capiscio-core >= 2.5.0, < 3.0.0
Python 3.10+
Optional: mcp >= 1.0 for MCP SDK integration