Skills/PyPI/kb-mcp-lite

kb-mcp-lite@0.9.3

VERIFIED· not started

Publisher claims: "Lightweight agent-native knowledge base. SQLite + FTS5 + vec0 + MCP server." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher hellotombruce · publishing for 143 daysInstalls 603Last detonated 2d ago
$claude mcp add kb-mcp-lite -- uvx kb-mcp-lite
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
COHERE_API_KEYJINA_API_KEYKB_MCP_RERANK_API_KEYOPENAI_API_KEYSILICONFLOW_API_KEYConfiguration, not credentials: KB_DEBUG, KB_MCP_CONFIG, KB_MCP_EMBEDDING_CONFIG, KB_MCP_HOME, KB_MCP_LOCK_TIMEOUT, KB_MCP_LOG_LEVEL, KB_MCP_RERANK_BASE_URL, KB_MCP_RERANK_CONFIG, KB_MCP_RERANK_MODEL, KB_MCP_RERANK_PROVIDER, KB_MCP_RERANK_URL, KB_MCP_STRICT_LOCK, KB_MCP_VAULT
Where it talks to
no vendor host named in the codeAlso siliconflow.cn, cohere.com, jina.ai — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names siliconflow.cn, cohere.com, jina.ai as well as its own vendor. The guard injects COHERE_API_KEY, JINA_API_KEY, KB_MCP_RERANK_API_KEY, OPENAI_API_KEY, SILICONFLOW_API_KEY only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx kb-mcp-lite

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-12 and scored it 84/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

HIGH
Access to sensitive file pathssrc/kb_mcp_lite/embedder.py:133 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files(keeps secrets out of config.yaml, in .env instead). UnknownFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathstests/test_md_io.py:674 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filessource="../../etc/passwd",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedsrc/kb_mcp_lite/context_guard.py:38 · Python subprocess execution detectedres_diff = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathssrc/kb_mcp_lite/embedder.py:154 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesPath.home() / ".hermes" / "profiles" / "default" / ".env",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedtests/test_admin_git.py:84 · Python subprocess execution detectedsubprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathssrc/kb_mcp_lite/reranker.py:109 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesPath.home() / ".hermes" / "profiles" / "default" / ".env",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedsrc/kb_mcp_lite/vault.py:419 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedtests/test_mcp_e2e.py:188 · Python subprocess execution detectedproc = subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/kb_mcp_lite/vault.py:496 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Access to sensitive file pathstests/test_md_io.py:945 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""NFR-S-3 explicit acceptance: ../../../etc/passwd must be rejected."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedsrc/kb_mcp_lite/vault.py:377 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/kb_mcp_lite/vault.py:458 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/kb_mcp_lite/context_guard.py:28 · Python subprocess execution detectedres_files = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/kb_mcp_lite/vault.py:428 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathssrc/kb_mcp_lite/embedder.py:146 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""Load ``~/.hermes/profiles/default/.env`` into ``os.environ``.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/kb_mcp_lite/embedder.py:155 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesPath.home() / ".hermes" / ".env",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/kb_mcp_lite/reranker.py:110 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesPath.home() / ".hermes" / ".env",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/kb_mcp_lite/embedder.py:150 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesstandalone CLI (``kb search ...``) the .env is not auto-loaded.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathstests/test_md_io.py:689 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filessource="/etc/passwd",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedtests/test_admin_git.py:83 · Python subprocess execution detectedsubprocess.run(["git", "config", "user.name", "Test User"], cwd=str(git_dir), check=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Access to sensitive file pathstests/test_md_io.py:940 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# Path-traversal guard (NFR-S-3) — direct test with ../../../etc/passwdFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/kb_mcp_lite/reranker.py:107 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""Load ~/.hermes/profiles/default/.env, ~/.hermes/.env, .env, ~/.zshrc, ~/.bashrc into os.environ."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathstests/test_md_io.py:698 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files("proj/abs", "project", "Abs", "b", "/etc/passwd", now, now),Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05

Cost to the agent

Instructions loaded
≈55 tok
1 file · 81 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for kb-mcp-lite@0.9.3 as of 2d ago. This is the package itself, not its dependencies.