registry / record
@playwright/mcp
Does @playwright/mcp MCP work in Claude Code and Cursor? Throne executed @playwright/mcp mcp in a single-use Firecracker microVM and replayed both recorded client behaviours. Compatibility verdict: fit. Is @playwright/mcp 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 @playwright/mcp
sealed
- scan id
- 7c8fa65074f341ccacb3ab0e1edc9e60
- target
- @playwright/mcp
- sealed at
- 2026-06-16 18:17:08Z
- evidence hash
- sha256:9a1484d6604fae6d750a6172ea645a02e24eb116fa408674c2f6bef2f44edb2b
initialize ok: server Playwright 1.61.0-alpha-1781023400000, negotiated protocolVersion 2025-11-25, capabilities ['tools']
supported: tools/list (23 tools); method not found (tolerated): resources/list, prompts/list
all 23 tool inputSchemas are valid JSON Schema
called 10 of 10 tools (cap 10, strategy=serial): 0 ok, 10 returned tool-level errors (expected for synthesized args)
structured error responses, connection survived, wrong_type_args: browser_close:accepted (returned result); browser_resize:accepted (returned result); browser_console_messages:accepted (returned result); browser_handle_dialog:accepted (returned result); browser_evaluate: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 browser_close calls: max_observed_stable_concurrency=1; all ids answered exactly once, but every call returned an error (tool-level isError result), the tool may need runtime dependencies this sandbox does not provide
transport closed and relaunched; re-handshake ok (protocolVersion 2025-11-25, first session was 2025-11-25)
initialize ok: server Playwright 1.61.0-alpha-1781023400000, negotiated protocolVersion 2025-11-25, capabilities ['tools'] [request_strategy=pipelined, connection_count=2, second connection established]
supported: tools/list (23 tools); method not found (tolerated): resources/list, prompts/list; notes: connection 2 confirms 23 tools
all 23 tool inputSchemas are valid JSON Schema
called 10 of 10 tools (cap 10, strategy=pipelined): 0 ok, 10 returned tool-level errors (expected for synthesized args)
structured error responses, connection survived, wrong_type_args: browser_close:accepted (returned result); browser_resize:accepted (returned result); browser_console_messages:accepted (returned result); browser_handle_dialog:accepted (returned result); browser_evaluate: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 browser_close calls: max_observed_stable_concurrency=6; all ids answered exactly once, but every call returned an error (tool-level isError result), the tool may need runtime dependencies this sandbox does not provide
transport closed and relaunched; re-handshake ok (protocolVersion 2025-11-25, first session was 2025-11-25)
2 non-local endpoint host(s) referenced in code, verify each is expected for this server's purpose: playwright.dev (package/config.d.ts:56), www.apache.org (package/cli.js:9)
package/cli.js:9- target
- @playwright/mcp 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 18:17:08Z
- evidence hash
- sha256:9a1484d6604fae6d750a6172ea645a02e24eb116fa408674c2f6bef2f44edb2b
- 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/playwright-mcp)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.