THRONE
See report Verify server

registry / record

@modelcontextprotocol/server-puppeteer

npm / sealed 2026-06-12 / No. 3bd52f69

> throne registry @modelcontextprotocol/server-puppeteer sealed
receiptsealed evidence
scan id
3bd52f69cba74b2e829d84c97b8dc31f
target
@modelcontextprotocol/server-puppeteer
sealed at
2026-06-12 06:55:34Z
evidence hash
sha256:4937e5b7cabb9e59941241ba8867469db6dc32f2e2f0a2a2913ebc21f7539870
01connectPASS875ms

initialize ok: server example-servers/puppeteer 0.1.0, negotiated protocolVersion 2024-11-05, capabilities ['resources', 'tools']

02discoverPASS6ms

supported: tools/list (7 tools), resources/list (1); method not found (tolerated): prompts/list

03validate_schemasPASS10ms

all 7 tool inputSchemas are valid JSON Schema

04smoke_test_toolsPASS5.1s

called 7 of 7 tools (cap 10): 0 ok, 7 returned tool-level errors (expected for synthesized args)

05error_handlingPASS4.3s

structured error responses, connection survived — wrong_type_args: error(-32603); unknown_method: error(-32601); invalid_id: no response (silent), connection alive

06streamingPASS0ms

no streaming-capable tool declared by this server; not applicable (pass-na)

07resource_lifecyclePASS2ms

read console://logs (1 content blocks); subscribe capability not declared (pass-na)

08concurrent_callsWARN1.3s

ladder 1/2/4/8 overlapping puppeteer_navigate calls: max_observed_stable_concurrency=8; all ids answered exactly once, but every call returned an error (error -32603: Failed to launch the browser process! undefined [1007:1029:0612/065502.812818:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory [1007:1007:0612/065502.814423:ERROR:ozone_platform_x11.cc(244)] Missing X server or $DISPLAY [1007:1007:0612/065502.814436:ERROR:env.cc(257)] The platform failed to initialize. Exiting. TROUBLESHOOTING: https://pptr.dev/troubleshooting ) — the tool may need runtime dependencies this sandbox does not provide

09reconnectPASS862ms

transport closed and relaunched; re-handshake ok (protocolVersion 2024-11-05, first session was 2024-11-05)

01connectPASS783ms

initialize ok: server example-servers/puppeteer 0.1.0, negotiated protocolVersion 2024-11-05, capabilities ['resources', 'tools']

02discoverPASS5ms

supported: tools/list (7 tools), resources/list (1); method not found (tolerated): prompts/list

03validate_schemasPASS9ms

all 7 tool inputSchemas are valid JSON Schema

04smoke_test_toolsPASS5.8s

called 7 of 7 tools (cap 10): 0 ok, 7 returned tool-level errors (expected for synthesized args)

05error_handlingPASS8.9s

structured error responses, connection survived — wrong_type_args: error(-32603); unknown_method: error(-32601); invalid_id: no response (silent), connection alive

06streamingPASS0ms

no streaming-capable tool declared by this server; not applicable (pass-na)

07resource_lifecyclePASS2ms

read console://logs (1 content blocks); subscribe capability not declared (pass-na)

08concurrent_callsWARN7.0s

ladder 1/2/4/8 overlapping puppeteer_navigate calls: max_observed_stable_concurrency=8; all ids answered exactly once, but every call returned an error (error -32603: Failed to launch the browser process! undefined [1737:1759:0612/065521.108316:ERROR:bus.cc(407)] Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory [1737:1737:0612/065521.109563:ERROR:ozone_platform_x11.cc(244)] Missing X server or $DISPLAY [1737:1737:0612/065521.109576:ERROR:env.cc(257)] The platform failed to initialize. Exiting. TROUBLESHOOTING: https://pptr.dev/troubleshooting ) — the tool may need runtime dependencies this sandbox does not provide

09reconnectPASS4.5s

transport closed and relaunched; re-handshake ok (protocolVersion 2024-11-05, first session was 2024-11-05)

chatgpt desktopemulation profile pending real-traffic captureCOMING SOON
SECURITY: REVIEW / 1 finding(s) / review material, not a verdict
LOWTHR-INSTALL-03 / Install-time script execution (npm lifecycle)

"prepare" runs on git-dependency installs and local dev (not registry installs): 'npm run build'

package/package.json
VERDICT: FIT TO SHIPSANDBOXED RUN — submitted server executed in a disposable microVM — compatibility: 0 fail / 2 warn across 2 clients / security: review — 1 finding(s), 0 highsealed by THRONE / No. 3bd52f69 / 2026-06-12
THRONE: FIT TO SHIPwear the crown

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.

[![THRONE: FIT TO SHIP](https://api.usethrone.dev/api/badge/%40modelcontextprotocol%2Fserver-puppeteer)](https://usethrone.dev/server/modelcontextprotocol-server-puppeteer)
executed in a disposable microVM, created for this scan and destroyed after it. nothing outlives a run.

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.