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Migrate all 9 packages from Zod 3.22.x to Zod 4.3.6. This is a
breaking change for downstream TypeScript consumers who compile
against exported @peac/schema types (z.infer<> types are not
assignment-compatible across Zod majors).
Schema changes:
- z.record() single-arg form removed in Zod 4: add explicit
z.string() key schema in 5 locations (schema, control, mcp-server)
- .default({}) on object schemas requires output-type-compatible
values in Zod 4: use .prefault({}) for input-type defaults (policy.ts)
- ZodError.errors alias removed: use .issues in test assertions
- issue.path typed as PropertyKey[] (was (string | number)[]): add
casts at 2 call sites (protocol/issue.ts, cli/validators.ts)
No behavioral changes to schema validation, receipt issuance, or
verification. All 4138 tests pass across 167 test files.
Workspace enforcement:
- pnpm.overrides forces zod@^4.3.6 across all workspace packages
- Prevents mixed Zod 3/4 which causes runtime TypeError
Add HTTP transport alongside stdio for remote MCP client connectivity. Each session gets isolated McpServer + transport (CVE-2026-25536 defense). New files: - src/http-transport.ts: HTTP server with CORS, rate limiting, PRM - src/session-manager.ts: session lifecycle, TTL eviction, isolation Endpoints: POST /mcp (JSON-RPC), DELETE /mcp (terminate session), GET /health, GET /.well-known/oauth-protected-resource (conditional PRM) Security (DD-123): localhost-only default, CORS deny-all, 1MB body limit, per-session + per-IP rate limiting, Host/Origin validation, server timeouts CLI flags: --transport, --port, --host, --cors-origins, --authorization-servers, --public-url, --trust-proxy Tests: 25 new (session manager + HTTP transport integration)
Merged
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Summary
--authorization-serversand--public-urlare configuredNew files
src/http-transport.ts: HTTP server setup, CORS, health endpoint, conditional PRM, request routingsrc/session-manager.ts: Mcp-Session-Id lifecycle, TTL eviction (default 30 min), max sessions (default 100), periodic sweeptests/http/http-transport.test.ts: 15 integration tests (health, 404, 405, session ID requirements, PRM, CORS, size limits, protocol version, preflight)tests/http/session-manager.test.ts: 10 unit tests (create, isolate, lookup, terminate, eviction, cleanup)Modified files
src/cli.ts: Added--transport,--port,--host,--cors-origins,--authorization-servers,--public-url,--trust-proxyflags with HTTP/stdio transport branchingsrc/infra/constants.ts: Added HTTP transport default constantsEndpoints
CLI flags
Test plan
Non-goals (explicitly deferred)
Spec deltas
Round 2 hardening (commit 0912520)
Trust-proxy upgrade
TrustProxyValueexpanded withlinklocal(169.254.0.0/16, fe80::/10),private(RFC 1918),all(discouraged) presets::ffff:) recognized in all presetsCVE-2026-25536 regression test
MCP compliance test matrix
docs/security/MCP-COMPLIANCE-MATRIX.md: 35 requirements mapped to test namesDeployer security checklist
docs/security/HTTP-TRANSPORT-SECURITY.md: production deployment guidance