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io.github.cdrn/sigil

NPM · SIGILD · SCANNED AUG 3

Local keystore + MCP server. Claude can sign EVM transactions but never sees the private key.

Available components

−15 this week 78 Trust /100
Trust breakdown (6 categories)

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 →

Supply Chain Security88
  • 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
  • 4 of 4 dependencies flagged as unhealthy (4 deprecated). View diagnostics → Partial
Provenance & Transparency97
  • Source repository is publicly reachable at the declared URL. View diagnostics → Pass
  • Cryptographically verified build provenance (signed, bound to cdrn/sigil). View diagnostics → Pass
  • Clear OSI-approved license (Apache-2.0).Pass
  • Actively maintained (last published 25 days ago).Pass
  • Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
  • AI-judged instruction clarity (excellent).Pass
  • Tool/resource definitions use about 356 tokens (~89/item across 4 items; 4 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
  • Stability observed for 7 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
Capabilities60
  • Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · sigild

# add to Claude Code
claude mcp add cdrn-sigil -- npx -y sigild
# add to Codex CLI
codex mcp add cdrn-sigil -- npx -y sigild
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cdrn-sigil": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "sigild"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add cdrn-sigil --command npx --arg -y --arg sigild
# ~/.hermes/config.yaml
mcp_servers:
  cdrn-sigil:
    command: "npx"
    args: ["-y", "sigild"]
// mcp.json
{
  "mcpServers": {
    "cdrn-sigil": {
      "command": "npx",
      "args": [
        "-y",
        "sigild"
      ]
    }
  }
}
Changelog

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.

  • 3 Aug 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

  • 2 Aug 26 +15
    • Malware scan: unverified → pass security
    • Dependency health: 0.88 → 0.00 functional
    • Stability: unverified → 0.20 functional
  • 31 Jul 26 −13
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 −18
    • Malware scan: pass → unverified security
  • 27 Jul 26 +34
    • Tool coverage: unverified → 100 functional
    • First check of Schema quality: fail functional
    • First check of Tool coverage: 100 functional
    • First check of Schema quality: pass functional
    • First check of Schema quality: excellent functional
  • 26 Jul 26 59

    First indexed and scored.

    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostics

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 3 Aug 2026 · Analysed npm/[email protected]

Provenance verified

Ecosystem: npm · Outcome: verified

Reason: verified

Source repo:
cdrn/sigil
Certificate issuer:
https://token.actions.githubusercontent.com
Certificate SAN:
https://github.com/cdrn/sigil/.github/workflows/release.yml@refs/tags/v0.0.6
Rekor log index:
1578289800
Predicate type:
https://slsa.dev/provenance/v1
Subject digest:
sha512:64a1b63e375a05daf3eaa49c291dece271f51e62f5c94035ffd1bf5dcc8150f6967f92b127be026259fb462b30f66efaa84f5f7b55cc379ab6d0070a0
Discovery method:
attestation_endpoint
Dependencies 4 packages

4 packages in the resolved dependency tree · 4 deprecated · 1 stale.

MCP tools — 4 exposed · ~356 tokens

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.

Tool Tokens
sigil_eth_sign_message ~100

Sign an EIP-191 personal_sign message with the named portal. The message is supplied as 0x-prefixed hex bytes (encode strings to UTF-8 first). Returns the 65-byte r||s||v signature as 0x-prefixed hex.

NameTypeReqDescription
messagestringyes0x-prefixed hex of the bytes to sign.
portalstringyesPortal handle, e.g. "eth:executor".

No output schema declared.

No examples provided.

sigil_eth_sign_transaction ~138

Sign an Ethereum transaction (legacy or EIP-1559) with the named portal. Returns the signed transaction as 0x-prefixed hex, ready for eth_sendRawTransaction.

NameTypeReqDescription
portalstringyesPortal handle.
txobjectyesTransaction fields. type="legacy" requires {chainId, nonce, gasPrice, gasLimit, to, value, data}. type="eip1559" requires {chainId, nonce, maxPriorityFeePerGas, maxFeePerGas, gasLimit, to, value, dat…

No output schema declared.

No examples provided.

sigil_eth_sign_typed_data ~74

Sign an EIP-712 typed data structure with the named portal. Returns the 65-byte signature as 0x-prefixed hex.

NameTypeReqDescription
portalstringyesPortal handle.
typedDataobjectyesEIP-712 typed data: {types, primaryType, domain, message}.

No output schema declared.

No examples provided.

sigil_list_portals ~44

List the signing portals currently loaded in sigil. Returns each portal handle (e.g. "eth:executor"), its kind, and the public address it controls.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.