registry / record
@modelcontextprotocol/server-sequential-thinking
Does @modelcontextprotocol/server-sequential-thinking MCP work in Claude Code and Cursor? Throne executed @modelcontextprotocol/server-sequential-thinking mcp in a single-use Firecracker microVM and replayed both recorded client behaviours. Compatibility verdict: fit. Is @modelcontextprotocol/server-sequential-thinking mcp safe? Static security scan: 1 finding(s) to review under security ruleset v1. The full per-step results, security findings, scan date, and evidence hash are below.
> throne registry @modelcontextprotocol/server-sequential-thinking
sealed
- scan id
- 88df3536b7734798af9099570f8a42cb
- target
- @modelcontextprotocol/server-sequential-thinking
- sealed at
- 2026-06-16 18:04:27Z
- evidence hash
- sha256:1ad0449636c7a0e3426cb7581fb4b19d6238b7b0e40c986b36b834cf2de5575c
initialize ok: server sequential-thinking-server 0.2.0, negotiated protocolVersion 2025-11-25, capabilities ['tools']
supported: tools/list (1 tools); method not found (tolerated): resources/list, prompts/list
all 1 tool inputSchemas are valid JSON Schema
called 1 of 1 tools (cap 10, strategy=serial): 1 ok, 0 returned tool-level errors (expected for synthesized args)
structured error responses, connection survived, wrong_type_args: sequentialthinking:accepted (returned result); unknown_method: error(-32601); invalid_id: no response (silent), connection alive; oversized_input: accepted (returned result); recovery: accepted (returned result); cancellation: accepted (returned result); old_version: accepted old version 2024-10-07, negotiated 2024-10-07, server may have stale protocol handling
no streaming-capable tool declared by this server
resources capability not declared
ladder 1 overlapping sequentialthinking calls: max_observed_stable_concurrency=1; all ids answered exactly once at every level
transport closed and relaunched; re-handshake ok (protocolVersion 2025-11-25, first session was 2025-11-25)
initialize ok: server sequential-thinking-server 0.2.0, negotiated protocolVersion 2025-11-25, capabilities ['tools'] [request_strategy=pipelined, connection_count=2, second connection established]
supported: tools/list (1 tools); method not found (tolerated): resources/list, prompts/list; notes: connection 2 confirms 1 tools
all 1 tool inputSchemas are valid JSON Schema
called 1 of 1 tools (cap 10, strategy=pipelined): 1 ok, 0 returned tool-level errors (expected for synthesized args)
structured error responses, connection survived, wrong_type_args: sequentialthinking:accepted (returned result); unknown_method: error(-32601); invalid_id: no response (silent), connection alive; oversized_input: accepted (returned result); recovery: accepted (returned result); cancellation: accepted (returned result); old_version: accepted old version 2024-10-07, negotiated 2024-10-07, server may have stale protocol handling
no streaming-capable tool declared by this server
resources capability not declared
ladder 1/2/4/6 overlapping sequentialthinking calls: max_observed_stable_concurrency=6; all ids answered exactly once at every level
transport closed and relaunched; re-handshake ok (protocolVersion 2025-11-25, first session was 2025-11-25)
"prepare" runs on git-dependency installs and local dev (not registry installs): 'npm run build'
package/package.json- target
- @modelcontextprotocol/server-sequential-thinking npm
- engine
- sandboxed
- claude code
- calibration: partial recorded=9,spec=0,assumed=9
- cursor
- calibration: partial recorded=11,spec=0,assumed=7
- chatgpt desktop
- calibration: unavailable recorded=0,spec=2,assumed=16
- steps exercised
- 14 of 18
- test suite
- v1.0.0
- security ruleset
- v1.0.0
- sealed at
- 2026-06-16 18:04:27Z
- evidence hash
- sha256:1ad0449636c7a0e3426cb7581fb4b19d6238b7b0e40c986b36b834cf2de5575c
- valid until
- 2026-09-14
paste this in your README. it renders the live verdict and links back to this record. if a release ever breaks the verdict, the badge says so on its own.
[](https://usethrone.dev/server/modelcontextprotocol-server-sequential-thinking)maintainer of this server? challenge this record: hello@usethrone.dev. tell us what we got wrong and we re-run it in the open.
this page renders the stored record of a real run. nothing on it is asserted without the execution that proved it.