io.github.yifanyifan897645/mcp-checkup
NPM · MCP-CHECKUP · SCANNED SEP 20
Analyze your MCP setup: token costs, grades, duplicates, and optimization tips
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 32 of 97 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 150 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability81
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 276 tokens (~55/item across 5 items; 5 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
- Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.yifanyifan897645/mcp-checkup server?
io.github.yifanyifan897645/mcp-checkup runs locally as an npm package, launched with npx -y mcp-checkup. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · mcp-checkup
claude mcp add yifanyifan897645-mcp-checkup -- npx -y mcp-checkup
{
"mcpServers": {
"yifanyifan897645-mcp-checkup": {
"command": "npx",
"args": [
"-y",
"mcp-checkup"
]
}
}
} {
"servers": {
"yifanyifan897645-mcp-checkup": {
"command": "npx",
"args": [
"-y",
"mcp-checkup"
]
}
}
} codex mcp add yifanyifan897645-mcp-checkup -- npx -y mcp-checkup
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"yifanyifan897645-mcp-checkup": {
"type": "local",
"command": [
"npx",
"-y",
"mcp-checkup"
],
"enabled": true
}
}
} openclaw mcp add yifanyifan897645-mcp-checkup --command npx --arg -y --arg mcp-checkup
mcp_servers:
yifanyifan897645-mcp-checkup:
command: "npx"
args: ["-y", "mcp-checkup"] {
"McpServers": {
"yifanyifan897645-mcp-checkup": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"mcp-checkup"
]
}
}
} assistant mcp add yifanyifan897645-mcp-checkup -t stdio -c npx -a -y mcp-checkup
{
"mcpServers": {
"yifanyifan897645-mcp-checkup": {
"command": "npx",
"args": [
"-y",
"mcp-checkup"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.80 functional
- 16 Sept 26 0
- Stability: 0.97 → pass security
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 −3
- Stability: pass → 0.80 functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed npm/mcp-checkup@0.1.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 97 packages
| Packages resolved | 97 |
|---|---|
| Stale | 32 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
analyze_servers ~60
Scan your MCP config and measure the token cost of every installed server. Returns tool count, total tokens, and a grade (A-F) per server.
| Name | Type | Req | Description |
|---|---|---|---|
| config_path | string | – | Path to MCP config file. Auto-detects if not provided. |
No output schema declared.
No examples provided.
analyze_tools ~76
Get detailed token cost breakdown for each tool in a specific MCP server. Shows per-tool grades, bloated descriptions, and optimization suggestions.
| Name | Type | Req | Description |
|---|---|---|---|
| config_path | string | – | Path to MCP config file. Auto-detects if not provided. |
| server_name | string | yes | Name of the MCP server (as it appears in your config) |
No output schema declared.
No examples provided.
count_tokens ~39
Count the number of tokens in a piece of text. Useful for estimating context window usage.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to count tokens for |
No output schema declared.
No examples provided.
find_duplicates ~49
Scan all MCP servers for duplicate or overlapping tool names. Helps identify redundant servers eating your context window.
| Name | Type | Req | Description |
|---|---|---|---|
| config_path | string | – | Path to MCP config file. Auto-detects if not provided. |
No output schema declared.
No examples provided.
generate_report ~52
Generate a comprehensive markdown health report for your MCP setup. Includes grades, token costs, duplicates, and optimization recommendations.
| Name | Type | Req | Description |
|---|---|---|---|
| config_path | string | – | Path to MCP config file. Auto-detects if not provided. |
No output schema declared.
No examples provided.
What is the io.github.yifanyifan897645/mcp-checkup server?
io.github.yifanyifan897645/mcp-checkup is listed in the public MCP registry as io.github.yifanyifan897645/mcp-checkup. Analyze your MCP setup: token costs, grades, duplicates, and optimization tips. This page covers its npm package (mcp-checkup).
Is the io.github.yifanyifan897645/mcp-checkup server safe to use?
io.github.yifanyifan897645/mcp-checkup scores 84 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.yifanyifan897645/mcp-checkup server expose?
io.github.yifanyifan897645/mcp-checkup exposes 5 tools: analyze_servers, analyze_tools, find_duplicates, count_tokens, generate_report. Their descriptions and schemas cost roughly 276 tokens of context every time the server is loaded.
Is the io.github.yifanyifan897645/mcp-checkup server still maintained?
io.github.yifanyifan897645/mcp-checkup is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.yifanyifan897645/mcp-checkup server under?
io.github.yifanyifan897645/mcp-checkup declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.