chore(deps): bump the go-dependencies group across 1 directory with 3 updates

[dependabot]

Bumps the go-dependencies group with 3 updates in the / directory: github.com/getkin/kin-openapi, github.com/modelcontextprotocol/go-sdk and golang.org/x/time.

Updates github.com/getkin/kin-openapi from 0.147.0 to 0.149.0

Release notes

Sourced from github.com/getkin/kin-openapi's releases.

v0.149.0

What's Changed

• openapi3: accept boolean schemas by @​reuvenharrison in getkin/kin-openapi#1258

Full Changelog: getkin/kin-openapi@v0.148.0...v0.149.0

v0.148.0

What's Changed

• openapi3: do not forget to carry schema format validators over to OAS3.1 by @​fenollp in getkin/kin-openapi#1250
• openapi3: add FormatOfStringForUUIDOfRFC9562 for UUID v6-v8 by @​ChrisJr404 in getkin/kin-openapi#1251
• openapi3: compare multipleOf on exact rationals, not fixed-precision decimals by @​snowyukitty in getkin/kin-openapi#1252
• docs: add inspect.software health badge by @​Nayjest in getkin/kin-openapi#1253
• openapi3: validate prefixItems positionally by @​reuvenharrison in getkin/kin-openapi#1259

New Contributors

• @​ChrisJr404 made their first contribution in getkin/kin-openapi#1251
• @​Nayjest made their first contribution in getkin/kin-openapi#1253

Full Changelog: getkin/kin-openapi@v0.147.0...v0.148.0

Commits

• 1a812b4 openapi3: accept boolean schemas (#1258)
• 9814d1f Merge commit from fork
• 9245cef Merge commit from fork
• 4487f19 Merge commit from fork
• 53c2ab1 openapi3: validate prefixItems positionally (#1259)
• ba23e9d docs: add inspect.software health badge (#1253)
• 94fcebf openapi3: compare multipleOf on exact rationals, not fixed-precision decimals...
• e9e5e11 openapi3: add FormatOfStringForUUIDOfRFC9562 for UUID v6-v8 (#1251)
• df7e8f4 openapi3: do not forget to carry schema format validators over to OAS3.1 (#1250)
• See full diff in compare view

Updates github.com/modelcontextprotocol/go-sdk from 1.7.0 to 1.8.0

Release notes

Sourced from github.com/modelcontextprotocol/go-sdk's releases.

v1.8.0

This release is equivalent to v1.8.0-pre.2. Thank you to those who tested the pre-release.

In this release we introduce several fixes and improvements on top of v1.7.0. It adds no new protocol revision: the supported set is unchanged, and 2026-07-28 remains the newest version the SDK negotiates.

The bulk of the work is hardening the transports against resource exhaustion, closing session leaks, deadlocks and teardown hangs found by users running the new protocol at scale, and giving servers explicit control over which protocol versions they advertise.

Two behavior changes are guarded by new MCPGODEBUG flags; see the section below.

Hardening against resource exhaustion

Every decoding path that buffers incoming input is now bounded. JSON payloads are rejected past 1000 levels of nesting, before the parser recurses. Both SSE readers cap the bytes buffered for a single event via MaxEventSize on SSEClientTransport and StreamableClientTransport, and the stdio transport caps a single JSON-RPC frame via StdioTransport.MaxLineLength.

On the OAuth side, dynamic client registration responses are bounded to 1 MB, and the discovery code now validates metadata documents rather than trusting them.

• internal/json: json nesting depth check by @​yarolegovich (#1200)
• mcp: add an sse event size cap by @​yarolegovich (#1205)
• mcp: add a max request body size of the old transport by @​yarolegovich (#1224)
• oauthex: bound dcr read to 1mb by @​yarolegovich (#1206)
• oauthex: oauth discovery checks by @​yarolegovich (#1220)

Restricting the protocol versions a server supports

ServerOptions.SupportedProtocolVersions lets a server narrow the set of versions it advertises and negotiates. The list can only narrow, never widen; naming a version the SDK does not implement panics at construction. Relatedly, a stateful streamable handler receiving a 2026-07-28 request now returns that same JSON-RPC error instead of a plain-text 400, so the client can renegotiate down instead of losing the connection.

• mcp: allow restricting the protocol versions a server supports by @​guglielmo-san (#1199)
• mcp: return json-rpc error on stateful server serving protocolVersion20260728 requests by @​guglielmo-san (#1143)
• mcp: limit SSE discover supportedVersions to SSE-defined revisions by @​arimu1 (#1121)
• mcp: prefer the negotiated protocol version over the request context by @​gwyszynski-sa (#1163)
• mcp: export ClientSessionOptions.ProtocolVersion by @​arimu1 (#1127)

Per-request cache control

ServerOptions.SetCacheable is a new hook that decides the ttlMs and cacheScope fields of every result carrying them: server/discover, the four list methods, and resources/read. It runs once per result, after the handler returns, with the values that handler produced, so it can set a policy globally while still letting an individual handler override it. Anything left unset falls back to the protocol default of public.

• mcp: allow per request Cacheable customization by @​guglielmo-san (#1203)

Behavior changes guarded by MCPGODEBUG

Two new escape-hatch flags restore the previous behavior of the changes above. Both will be removed in v1.9.0.

• plaintextstatefulrejection=1 — restore the plain-text http.Error 400 body a stateful StreamableHTTPHandler previously returned for a request carrying per-request metadata. The default is now a JSON-RPC -32022 CodeUnsupportedProtocolVersion error with an UnsupportedProtocolVersionData payload advertising the legacy versions the server supports. Introduced by #1143.
• blockingcancelnotify=1 — restore the previous behavior where a cancelled call waits synchronously for notifications/cancelled to be delivered (up to 5s) before returning, joining any delivery error into the caller's error. The default now retires the call immediately and sends the notification asynchronously. Introduced by #1151.

Options below were removed, according to plan:

• seterroroverwrite
• enableoriginverification
• disablecontenttypecheck

... (truncated)

Commits

• 3f3b699 refactor: remove legacy MCPGODEBUG compatibility for new protocol release (#1...
• 830f0b7 mcp: update conformance tests (#1231)
• 12cbafe oauthex: oauth discovery checks (#1220)
• 3632967 mcp: add an sse event size cap (#1205)
• 0d3036f mcp: allow per request Cacheable customization (#1203)
• cb0de64 mcp: add a max request body size of the old transport (#1224)
• 2fdabde mcp: do not check metatada on notifications (#1215)
• 59185e6 build(deps): bump ossf/scorecard-action from 2.4.3 to 2.4.4 (#1217)
• a6764cf build(deps): bump golang/govulncheck-action from 1.0.4 to 1.1.0 (#1218)
• 8227246 fix: only subscribe when server advertises capability (#1221)
• Additional commits viewable in compare view

Updates golang.org/x/time from 0.15.0 to 0.16.0

Commits

• fb013b3 all: upgrade go directive to at least 1.26.0 [generated]
• See full diff in compare view

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[dependabot]

Looks like these dependencies are updatable in another way, so this is no longer needed.