Skills/npm/mcp

mcp@0.26.3

VERIFIED

Publisher claims: "Model Context Protocol (MCP) server, client-side WebMCP tools and agent skills for Critical Path" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher critical-path · publishing for 66 daysInstalls 3,694Last detonated 12 h ago
$claude mcp add mcp -- npx -y @critical-path/mcp
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Coverage

Server started and answered tools/list.
Tested
MCP initialize and tools/list · every tool description, for hidden instructions · every file read, file written and host contacted by what ran
Not tested
what the tools do when called with real credentials

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-14 and scored it 90/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 33 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
13sprocessdependency install exit 0
33sclaimed27 tools: list_projects, get_project, create_project, list_tasks, get_task, create_task, update_task, delete_task, log_time, update_time_entry, delete_time_entry, add_dependency, remove_dependency, list_deliverables, create_deliverable, list_comments, add_comment, calculate_critical_path, calculate_portfolio_critical_path, create_baseline, list_baselines, get_timeline_ladder, get_task_ladder, get_task_metrics, get_task_progress_history
33stools83307174040ed0d7
33stoolsff8901a92ebd18a9
33stools12ae1c7bed926fb6
33stools5a87d35579f059b8
33stools0b6b5ac1117bb7fd
33stools395d02ddfb043bb0
33stoolscd54ea551678cb98
33stools13b8e29b42929063
33stools82ea870d454055f9
33stools89cf11ebf9235516
33stools77430c2fd06fc415
33stools2794e3b1d5083b57
33stools439ac9fb7cc0549e
33stoolsd430a4d93c8fb23e
33stools7ab2eb4dd2c164bc
33stools611544f1253750f6
33stools235ebb7284562a7c
33stools04df6d9875d4872d
33stools4b3183071ddefef7
33stools4291bd39119611d9
33stools16f077bb4c4e6016
33stools1edf6d8a38924cc5
33stoolsad0939abfd5e5a1a
33stoolsa727526f7e9f797b
33stoolsdb733526b6b10b58
33stoolsbf1be783261f8816
33stoolsbe1fe7f5d99cc225
33sprocessscript backend runs setup only
33sprocessno install scripts to re-run

Static findings

MEDIUM
npx invocation of non-well-known packagedist/bin/cli.js:15 · npx invocation of non-well-known package — may execute untrusted codenpx @critical-path/mcp skills install [--dir <path>] [--force]Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagedist/bin/cli.js:40 · npx invocation of non-well-known package — may execute untrusted codenpx @critical-path/mcp --api http://localhost:3000/api/critical-pathFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagedist/bin/cli.js:13 · npx invocation of non-well-known package — may execute untrusted codenpx @critical-path/mcp [options]Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagedist/bin/cli.js:14 · npx invocation of non-well-known package — may execute untrusted codenpx @critical-path/mcp skills listFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagedist/bin/cli.js:37 · npx invocation of non-well-known package — may execute untrusted codenpx @critical-path/mcp --db ./critical-path.dbFix: Pin versions and sources; vendor anything fetched at install time.
AST06

Cost to the agent

Instructions loaded
≈4,338 tok
6 files · 32 in bundle
Tool list per prompt
≈5,823 tok
27 tools · 216 per tool
Handshake
2381 ms
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 268

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for @critical-path/mcp@0.26.3 as of 12 h ago. This is the package itself, not its dependencies.