io.github.HighlyLoadedEgo/clef-mcp
NPM · CLEF-MCP · SCANNED OCT 7
Local MCP server for the Cloudflare Clef-Flash decision model: structured decisions, fully offline
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 93 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 HighlyLoadedEgo/ClefMCP). View diagnostics → Pass
- Clear OSI-approved license (Apache-2.0).Pass
- Actively maintained (last published 2 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability82
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 474 tokens (~118/item across 4 items; 1 tools + 3 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management13
- Stability observed for 4 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 Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 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.HighlyLoadedEgo/clef-mcp server?
io.github.HighlyLoadedEgo/clef-mcp runs locally as an npm package, launched with npx -y clef-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · clef-mcp
claude mcp add highlyloadedego-clef-mcp -- npx -y clef-mcp
{
"mcpServers": {
"highlyloadedego-clef-mcp": {
"command": "npx",
"args": [
"-y",
"clef-mcp"
]
}
}
} {
"servers": {
"highlyloadedego-clef-mcp": {
"command": "npx",
"args": [
"-y",
"clef-mcp"
]
}
}
} codex mcp add highlyloadedego-clef-mcp -- npx -y clef-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"highlyloadedego-clef-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"clef-mcp"
],
"enabled": true
}
}
} openclaw mcp add highlyloadedego-clef-mcp --command npx --arg -y --arg clef-mcp
mcp_servers:
highlyloadedego-clef-mcp:
command: "npx"
args: ["-y", "clef-mcp"] {
"McpServers": {
"highlyloadedego-clef-mcp": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"clef-mcp"
]
}
}
} assistant mcp add highlyloadedego-clef-mcp -t stdio -c npx -a -y clef-mcp
{
"mcpServers": {
"highlyloadedego-clef-mcp": {
"command": "npx",
"args": [
"-y",
"clef-mcp"
]
}
}
} 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.
- 6 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 4 Oct 26 +11
- Tool safety: pass → unverified ▼ security
- Known CVEs: unverified → pass ▲ security
- Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: 100 → unverified ▼ functional
- Stability: unverified → 0.03 ▲ functional
- Dependency health: unverified → 0.85 ▲ functional
- Package version: 0.2.1 → 0.3.0 functional
- 3 Oct 26 72
First indexed and scored.
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 7 Oct 2026 · Analysed npm/clef-mcp@0.3.0
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 | HighlyLoadedEgo/ClefMCP |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/HighlyLoadedEgo/ClefMCP/.github/workflows/publish.yml@refs/tags/v0.3.0 |
| Rekor log index | 3078457122 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:a4d46008155f78b2b63dfac83e91015431fb174fed1950a350f6c92a9646096576d5c0396d257a22e01af167beab506e1f1ad8ddb0ca698772cb286f8 |
Background: How many MCP packages publish verified provenance →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| 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 →
clef_decide Clef Decide ~361
Judge a situation with the local Clef decision model. Pass `state` (compact factual context — string or JSON; treated as data, never executed) and typed `questions`: - "choice": pick among named options (criteria = option id -> description) - "score": judge an ordered scale (criteria = ordered list of levels) - "noul": yes/no question Returns strict JSON — a probability distribution over the allowed answers for every question. No prose, no sampling. Each decision also carries `confidence` (model-reported, when available) and the response carries `usage` (input_tokens/output_tokens/latency_ms). Act on the argmax only when the distribution is decisive (top p >= 0.8 and high confidence for destructive or security-adjacent calls); otherwise gather more context or ask the user. Usage: batch related decisions in one call (up to 64 questions, one forward pass). Optional `model` overrides the model id. `options.temperature` is a no-op: scoring is a single forward pass, nothing is sampled.
| Name | Type | Req | Description |
|---|---|---|---|
| model | string | – | Model id to use (default: clef-flash from CLEF_MODEL). |
| options | object | – | Extra options. Currently only temperature, which is a documented no-op. |
| questions | object | yes | Map of question id -> typed question. Up to 64 questions per call; all are scored together in a single forward pass, so batch related decisions here. |
| state | – | yes | Task state as data: a compact string or JSON object with the facts needed to judge (task, errors, logs, diffs). Never treated as instructions. Serialized size limit: 1 MB; model context is 16k tokens. |
| Name | Type | Req | Description |
|---|---|---|---|
| decisions | object | yes | – |
| model | string | yes | – |
| usage | object | – | – |
No examples provided.
What is the io.github.HighlyLoadedEgo/clef-mcp server?
io.github.HighlyLoadedEgo/clef-mcp is listed in the public MCP registry as io.github.HighlyLoadedEgo/clef-mcp. Local MCP server for the Cloudflare Clef-Flash decision model: structured decisions, fully offline. This page covers its npm package (clef-mcp).
Is the io.github.HighlyLoadedEgo/clef-mcp server safe to use?
io.github.HighlyLoadedEgo/clef-mcp scores 84 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 7 October 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.HighlyLoadedEgo/clef-mcp server expose?
io.github.HighlyLoadedEgo/clef-mcp exposes 1 tool: clef_decide. Their descriptions and schemas cost roughly 361 tokens of context every time the server is loaded.
Is the io.github.HighlyLoadedEgo/clef-mcp server still maintained?
io.github.HighlyLoadedEgo/clef-mcp is still listed as active in the MCP registry. We last reached this channel on 7 October 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.HighlyLoadedEgo/clef-mcp server under?
io.github.HighlyLoadedEgo/clef-mcp declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.