MCP, MCP server
io.github.Declade/lucairn-mcp-server
Official client libraries for Lucairn — an EU-based privacy-preserving AI gateway.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 2f81515849fa, unchanged since the check below.
NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV OBFUSCATION_ENCODED_BLOB PERMISSION_SHELL_DECLARED SECRETS_ENV_READ
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
mcp-server/src/gateway-client.ts, line 44
* inject a stub. Defaults to the global fetch (Node 18.17+). - SECRETS_PATH_DOTENV Low
Mentions a .env file.
.gitignore, line 4
.env - OBFUSCATION_ENCODED_BLOB Low
Contains a long base64 shaped string in a file that should be readable.
go/internal/anchor/testdata/rekor_real_entry.json, line 1
{"362f8ecba72f4326abb93264122dc2eb6da3ac77957978dda3ceb3521ab52cdff8490b23eaf791c1":{"body":"eyJhcGlWZXJzaW9uIjoiMC4wLjEiLCJraW5kIjoicmVrb3JkIiwic3BlYyI6eyJkYXRhIjp7Imhhc2giOnsiYWx - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
go/cmd/lucairn-bundle-verify/cleaning_compat_test.go, line 34
cmd := exec.CommandContext(ctx, "git", args...) - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
mcp-server/src/index.ts, line 37
const apiKey = process.env.LUCAIRN_API_KEY || process.env.DSA_API_KEY
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
go/cmd/lucairn-bundle-verify/cleaning_compat_test.go, line 34
cmd := exec.CommandContext(ctx, "git", args...)
go/cmd/lucairn-bundle-verify/cleaning_compat_test.go, line 74
cmd := exec.CommandContext(ctx, "go", "build", "-overlay", overlayPath, "-o", old, "./cmd/lucairn-bundle-verify")
go/cmd/lucairn-bundle-verify/cleaning_compat_test.go, line 119
oldCmd := exec.CommandContext(ctx, old, oldArgs...)
Show more
go/cmd/lucairn-bundle-verify/exec_proof_test.go, line 39
build := exec.Command("go", "build", "-trimpath", "-o", bin, ".")
go/cmd/lucairn-bundle-verify/exec_proof_test.go, line 114
cmd := exec.Command(bin, append(append([]string{}, flags...), zip)...)
go/cmd/lucairn-bundle-verify/main_test.go, line 33
build := exec.Command("go", "build", "-trimpath", "-o", bin, ".")
go/cmd/lucairn-bundle-verify/main_test.go, line 60
cmd := exec.Command(bin, args...)
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
mcp-server/src/gateway-client.ts, line 44
* inject a stub. Defaults to the global fetch (Node 18.17+).
ts/src/client.getCertificate.test.ts, line 34
http.get(`${CERT_URL_PREFIX}:id`, () => HttpResponse.json(fixture)),
ts/src/client.getCertificate.test.ts, line 48
http.get(`${CERT_URL_PREFIX}:id`, ({ request }) => {
Show more
ts/src/client.getCertificate.test.ts, line 74
http.get(`${CERT_URL_PREFIX}:id`, () =>
ts/src/client.getCertificate.test.ts, line 130
http.get(`${CERT_URL_PREFIX}:id`, () =>
ts/src/client.getCertificate.test.ts, line 161
http.get(`${CERT_URL_PREFIX}:id`, () =>
ts/src/client.getCertificate.test.ts, line 183
server.use(http.get(`${CERT_URL_PREFIX}:id`, () => HttpResponse.error()));
ts/src/client.getCertificate.test.ts, line 199
http.get(`${CERT_URL_PREFIX}:id`, async () => {
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
mcp-server/src/index.ts, line 37
const apiKey = process.env.LUCAIRN_API_KEY || process.env.DSA_API_KEY
mcp-server/src/index.ts, line 42
const anthropicKey = process.env.ANTHROPIC_API_KEY || undefined
.gitignore, line 4
.env
Show more
mcp-server/src/index.ts, line 43
const openaiKey = process.env.OPENAI_API_KEY || undefined
ts/src/client.ts, line 328
* const client = new Lucairn({ apiKey: process.env.LUCAIRN_API_KEY! });
.gitignore, line 3
dist/
mcp-server/.dockerignore, line 7
*.log
mcp-server/.dockerignore, line 8
.env
ts/.gitignore, line 3
*.log
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Concern
contains an encoded blob in a file that should be readable.
OBFUSCATION_ENCODED_BLOB
go/internal/anchor/testdata/rekor_real_entry.json, line 1
{"362f8ecba72f4326abb93264122dc2eb6da3ac77957978dda3ceb3521ab52cdff8490b23eaf791c1":{"body":"eyJhcGlWZXJzaW9uIjoiMC4wLjEiLCJraW5kIjoicmVrb3JkIiwic3BlYyI6eyJkYXRhIjp7Imhhc2giOnsiYWx
go/internal/verify/testdata/real-v2-signable-go-reference.hex, line 1
7b2263657274696669636174655f6964223a227665696c5f30313965616564352d666334362d373234642d616438302d326164363765663837643364222c22636c61696d5f696473223a5b22636c6d5f30313965616564352d65
go/internal/verify/testdata/real-v3-cert.fixture.json, line 1
{"certificate_id":"veil_019eaed5-fc46-724d-ad80-2ad67ef87d3d","request_id":"0ad683d6a85692cc1631422a8c4293ba","protocol_version":2,"claims":[{"claim_id":"clm_019eaed5-eff5-7975-8cb
Show more
go/internal/verify/testdata/real-v3-signable-go-reference.hex, line 1
7b226170695f6b65795f6964223a226b5f6978337367776f777a68797a36677269222c2262796f6b5f6578656d7074223a66616c73652c2263657274696669636174655f6964223a227665696c5f30313965616564352d666334
go/internal/verify/testdata/v3-signable-go-reference.hex, line 1
7b226170695f6b65795f6964223a6e756c6c2c2262796f6b5f6578656d7074223a66616c73652c2263657274696669636174655f6964223a227665696c5f6f7261636c655f30303030303030303030303030303031222c22636c
testdata/parity-corpus/v1/cases/edge_cert_tier_full_chain_on_partial_input_shield.json, line 29
"canonical_payload": "eyJjbGFpbV9pZCI6ImNsbV8xODc1MTRkMy0wYWJjLTRlNzctYTI3My04MTlkZWUxNTRiNDEiLCJjbGFpbV90eXBlIjoiUElJX1NBTklUSVpFRCIsImRhdGFfbm90X3NlZW4iOlsiY3VzdG9tZXJfaWQiLCJ0b2
testdata/parity-corpus/v1/cases/edge_cert_tier_full_chain_on_partial_input_shield.json, line 61
"canonical_payload": "eyJjbGFpbV9pZCI6ImNsbV9kMWY0NjI0Yy03NTAwLTRjN2ItODZkZC04OTRkNmNkMGRjOTEiLCJjbGFpbV90eXBlIjoiSU5GRVJFTkNFX0NPTVBMRVRFRCIsImRhdGFfbm90X3NlZW4iOlsicmF3X3BpaSIsIn
testdata/parity-corpus/v1/cases/edge_cert_tier_full_chain_on_partial_input_shield.json, line 86
"canonical_payload": "eyJjbGFpbV9pZCI6ImNsbV85OGUwY2JhZi1iZWJjLTRiOTctYWMxZC05MzJlYTE1N2UzMzAiLCJjbGFpbV90eXBlIjoiSU5GRVJFTkNFX0NPTVBMRVRFRCIsImRhdGFfbm90X3NlZW4iOlsicmF3X3BpaSIsIn
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 2f81515849fa. requests shell access. The manifest names this permission. can reach a host that is not written as a fixed address. reads a credential or environment file. contains an encoded blob in a file that should be readable.
Date and source
Date checked:
github.com
Commit graded: 2f81515849fa6104f926ae15a1ae7464bb2c808b
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