agent-cassette@0.1.1
VERIFIED· install onlyPublisher claims: "Enables recording of live LLM HTTP/SSE token streams and MCP stdio interactions into deterministic cassettes, then replaying them offline in CI in ~0ms with no network calls or API keys. Normalizes volatile headers, hashes prompts and tool calls, and scrubs secrets while enforcing SSRF and path-containment safeguards." Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Nothing executable in the bundle ran; the trace covers the install step only.- Tested
- every file read, file written and host contacted by what ran
- Not tested
- use of the skill by an agent
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
- no credential variables read in the code
- Where it talks to
- no vendor host named in the code
- What the honeypot saw
- no credential files read · no network
- What we could not test
- use of the skill by an agent
Connect it under the guard. Nothing executable in the bundle ran; the trace covers the install step only. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.
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 (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-14 and scored it 82/100 (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 · 1 scenarios · 0 deviationsStatic findings
npx -y jsr publish --allow-dirtyFix: Pin versions and sources; vendor anything fetched at install time.expect(() => assertAllowedUpstreamTarget("http://192.168.1.1/v1")).toThrow(/SSRF/);Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.expect(() => assertAllowedUpstreamTarget("http://10.0.0.1/v1")).toThrow(/SSRF/);Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.env: { ...process.env, ...env },Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose." npx agent-cassette --mcp\n",Fix: Pin versions and sources; vendor anything fetched at install time.- `npx @kanchingyg/agent-cassette record -- <cmd>` / `replay -- <cmd>` / `--mcp`Fix: Pin versions and sources; vendor anything fetched at install time.expect(() => assertAllowedUpstreamTarget("http://169.254.169.254/latest/meta-data/")).toThrow(/SSRF/);Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.const blocked = await proxyFetch(rec.port, "http://10.0.0.1:80", "/v1/chat/completions", {Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls." npx agent-cassette replay -- <cmd...>\n" +Fix: Pin versions and sources; vendor anything fetched at install time.npm install -g npm@latestFix: Pin the exact version (`[email protected]`, `==1.2.3`) so every install gets the bytes that were reviewed." npx agent-cassette record -- <cmd...>\n" +Fix: Pin versions and sources; vendor anything fetched at install time.Cost to the agent
Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.
Known vulnerabilities
Vulnerability advisories (OSV) cover npm and PyPI packages; this registry has no advisory database.