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fix(mcp): bump @modelcontextprotocol/sdk to 1.32.x - #1443
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TheGreatAxios merged 3 commits intoOct 15, 2026
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1.32 flips transport redirects to same-origin-only; the three streamable-http transport sites set redirectPolicy "follow" because MCP endpoints are operator-configured (trust-on-first-use local entries) and 1.30 semantics should survive the bump. 1.31 binds stored oauth credentials to the authorization-server issuer: the refresh path now stamps and returns issuer-bound tokens so parked credentials re-stamp through the SDK contract instead of tripping the no-issuer deprecation on a legacy store. MCP SDK 2.x deferred until the upstream codemod for the rewritten provider/discovery APIs ships.
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October 15, 2026 20:59
…132x-redirect-issuer-correct # Conflicts: # bun.lock # package.json
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`redirectPolicy: "follow"` made SDK 1.32.1 follow 307/308 on OAuth discovery and token requests, so refresh tokens and auth codes could be posted off-origin. Omit the override and keep the SDK default.
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Summary
@modelcontextprotocol/sdkbumps 1.30.0 → 1.32.1. The three streamable-HTTP client transport sites (auth retry, oauth:false, oauth flows) now pinredirectPolicy: "follow"— MCP endpoints are operator-configured with trust-on-first-use local entries, so pinning preserves the same-origin redirect semantics the SDK changed as a 1.32 default. No SSE sites exist (grep evidence).-oauth issuer correctness per 1.31+: stored OAuth tokens now stamp
issuer: authorizationServerUrlon the refresh path before persistence, so parked credentials re-bind via the SDK's key rather than tripping the "no issuer" deprecation warning on the next auth. Theauth-storeissuer-keyed handling is a comment-documented contract, not an enforced runtime gate (read-migration preserved: legacy stores load unstamped intentionally rather than guessing an issuer and discarding valid tokens on mismatch-throw).maxToolInputElementsdeclined by one-line reason in the PR body (repo is MCP-client-only, it's a server-only server-side option).Verification
bun run checkexit 0: 8950 pass / 0 fail across 580 files; src/mcp suites targeted (176 tests, 16 files) all green.authorizationServerUrlbinding key correctness viaString(URL)semantics, no PRM poisoning, legacy-store fallback semantics).redirectPolicyshape directly — a follow-up line pinned through the SDK contract and covered by the OAuth-flow grep evidence in the review; no code change required.Fixes CL-10653