io.github.Dave-London/cargo
NPM · @PARETOOLS/CARGO · SCANNED SEP 20
Structured Rust cargo operations (build, test, clippy) as typed JSON.
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
- 31 of 96 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to Dave-London/Pare). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 32 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability80
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1153 tokens (~104/item across 11 items; 11 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "remove" implies "remove" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 12 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.Dave-London/cargo MCP server?
io.github.Dave-London/cargo runs locally as an npm package, launched with npx -y @paretools/cargo. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @paretools/cargo
claude mcp add dave-london-cargo -- npx -y @paretools/cargo
{
"mcpServers": {
"dave-london-cargo": {
"command": "npx",
"args": [
"-y",
"@paretools/cargo"
]
}
}
} {
"servers": {
"dave-london-cargo": {
"command": "npx",
"args": [
"-y",
"@paretools/cargo"
]
}
}
} codex mcp add dave-london-cargo -- npx -y @paretools/cargo
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"dave-london-cargo": {
"type": "local",
"command": [
"npx",
"-y",
"@paretools/cargo"
],
"enabled": true
}
}
} openclaw mcp add dave-london-cargo --command npx --arg -y --arg @paretools/cargo
mcp_servers:
dave-london-cargo:
command: "npx"
args: ["-y", "@paretools/cargo"] {
"McpServers": {
"dave-london-cargo": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@paretools/cargo"
]
}
}
} assistant mcp add dave-london-cargo -t stdio -c npx -a -y @paretools/cargo
{
"mcpServers": {
"dave-london-cargo": {
"command": "npx",
"args": [
"-y",
"@paretools/cargo"
]
}
}
} 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.
- 19 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.
- 16 Sept 26 −2
- Stability: pass → 0.80 functional
- 15 Sept 26 0
- Stability: 0.97 → pass security
- 14 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.
- 12 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.
- 10 Sept 26 −2
- Stability: pass → 0.83 functional
- 9 Sept 26 0
- Stability: 0.97 → pass security
- 8 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.
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/@paretools/cargo@0.7.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | Dave-London/Pare |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/Dave-London/Pare/.github/workflows/release.yml@refs/heads/main |
| Rekor log index | 949168450 |
| Predicate type | https://slsa.dev/provenance/v1 |
| Subject digest | sha512:0e2bbc6add2bd0cb67e286030487462a59dcd73c64fdbb5b8b1fbd170ecad78f5ef7b7620636e237daf7c3df2b7d47e2d04b363499f348de343a5e090 |
Background: How many MCP packages publish verified provenance →
Dependencies 96 packages
| Packages resolved | 96 |
|---|---|
| Stale | 31 |
| 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 →
add Cargo Add ~180
Adds dependencies to a Rust project and returns structured output. Use instead of running `cargo add` in the terminal. WARNING: Adding crates downloads and compiles third-party code which may include build scripts (build.rs). Only add trusted crates. Use dryRun to preview changes before committing.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| dev | boolean | – | Add as dev dependency (--dev) |
| dryRun | boolean | – | Preview what would be added without modifying Cargo.toml (--dry-run) |
| features | array | – | Features to enable (e.g. ["derive", "full"]) |
| packages | array | yes | Packages to add (e.g. ["serde", "tokio@1.0"]) |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| added | array | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
No examples provided.
build Cargo Build ~87
Runs cargo build and returns structured diagnostics (file, line, code, severity, message). Use instead of running `cargo build` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Project root path (default: cwd) |
| release | boolean | – | Build in release mode |
| Name | Type | Req | Description |
|---|---|---|---|
| diagnostics | array | yes | – |
| errors | number | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
| warnings | number | yes | – |
No examples provided.
check Cargo Check ~93
Runs cargo check (type check without full build) and returns structured diagnostics. Faster than build for error checking. Use instead of running `cargo check` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| package | string | – | Package to check in a workspace |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| diagnostics | array | yes | – |
| errors | number | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
| warnings | number | yes | – |
No examples provided.
clippy Cargo Clippy ~70
Runs cargo clippy and returns structured lint diagnostics. Use instead of running `cargo clippy` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| diagnostics | array | yes | – |
| errors | number | yes | – |
| total | number | yes | – |
| warnings | number | yes | – |
No examples provided.
doc Cargo Doc ~99
Generates Rust documentation and returns structured output with warning count. Use instead of running `cargo doc` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| noDeps | boolean | – | Skip building documentation for dependencies (--no-deps) |
| open | boolean | – | Open docs in browser after generating |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| success | boolean | yes | – |
| warnings | number | yes | – |
No examples provided.
fmt Cargo Fmt ~82
Checks or fixes Rust formatting and returns structured output. Use instead of running `cargo fmt` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| check | boolean | – | Check only without modifying files (--check) |
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| files | array | yes | – |
| filesChanged | number | yes | – |
| success | boolean | yes | – |
No examples provided.
remove Cargo Remove ~93
Removes dependencies from a Rust project and returns structured output. Use instead of running `cargo remove` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| dev | boolean | – | Remove from dev dependencies (--dev) |
| packages | array | yes | Package names to remove |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| removed | array | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
No examples provided.
run Cargo Run ~114
Runs a cargo binary and returns structured output (exit code, stdout, stderr). Use instead of running `cargo run` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| args | array | – | Arguments to pass to the binary (after --) |
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| package | string | – | Package to run in a workspace |
| path | string | – | Project root path (default: cwd) |
| release | boolean | – | Run in release mode |
| Name | Type | Req | Description |
|---|---|---|---|
| exitCode | number | yes | – |
| stderr | string | yes | – |
| stdout | string | yes | – |
| success | boolean | yes | – |
No examples provided.
test Cargo Test ~87
Runs cargo test and returns structured test results (name, status, pass/fail counts). Use instead of running `cargo test` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| filter | string | – | Test name filter pattern |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| failed | number | yes | – |
| ignored | number | yes | – |
| passed | number | yes | – |
| success | boolean | yes | – |
| tests | array | yes | – |
| total | number | yes | – |
No examples provided.
tree Cargo Tree ~97
Displays the dependency tree for a Rust project. Use instead of running `cargo tree` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| depth | number | – | Maximum depth of the dependency tree to display |
| package | string | – | Focus on a specific package in the tree |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| packages | number | yes | – |
| tree | string | yes | – |
No examples provided.
update Cargo Update ~95
Updates dependencies in the lock file. Optionally updates a single package. Use instead of running `cargo update` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| package | string | – | Specific package to update (e.g. 'serde'). Omit to update all. |
| path | string | – | Project root path (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| output | string | yes | – |
| success | boolean | yes | – |
No examples provided.
What is the io.github.Dave-London/cargo MCP server?
io.github.Dave-London/cargo is an MCP server listed in the public MCP registry as io.github.Dave-London/cargo. Structured Rust cargo operations (build, test, clippy) as typed JSON. This page covers its npm package (@paretools/cargo).
Is the io.github.Dave-London/cargo MCP server safe to use?
io.github.Dave-London/cargo scores 93 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. Its build provenance is signed and verified. 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.Dave-London/cargo MCP server expose?
io.github.Dave-London/cargo exposes 11 tools: build, test, clippy, run, add, and 6 more. Their descriptions and schemas cost roughly 1,097 tokens of context every time the server is loaded.
Is the io.github.Dave-London/cargo MCP server still maintained?
io.github.Dave-London/cargo 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.Dave-London/cargo MCP server under?
io.github.Dave-London/cargo declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.