Detonation LabsBehavioral security for the AI agent supply chain
Raw JSONDownload PDF

Verdict

No malicious behavior observed

We ran it 4 times, with a normal setup, WATCH_REPORT_DEPENDENCIES set and a GitHub Actions environment. It contacted losercoreplaylist.com. It did not touch the fake credentials we planted, and nothing it sent carried them.

2 findings. Scanned 26 Oct 2026 by detonator 0.5.1.

Target
losercore-playlist
Source
clawhub 1.0.1
SHA-256
87625f6aca199fc7
Files
6
RecommendationNo action needed

Nothing observed calls for action. This is evidence, not a guarantee.

batch:clawhub:2026-10-26

What this package does

observed across 4 runs
  1. Package losercore-playlist 6 files · agent skill
  2. Install No install stepFiles were copied in as they are.
  3. Runs as node <skill>/scripts/mcp-call.mjsls -lahead -50ls -R skill An AI agent also used it 1 time.
  4. What it reached
    Network
    • losercoreplaylist.com 13 connections, 2.6 KB sent
    Credentials
    • ./.envread
    Files written

    Nothing outside its own folder.

We planted fake AWS, SSH, npm and GitHub keys and a .env file before every run. Red means something left or was planted to run later.

Findings

F01 Low

Network destinations contacted

Confidence
Info The package connected to these hosts.
Observed in
llm:baseline

Description

Network destinations the package resolved or connected to during the runs. All traffic was captured by the sandbox; nothing reached the internet.

Impact

Context only. Unexpected destinations are worth checking against what the package claims to do.

Evidence

losercoreplaylist.com

Remediation

Confirm each host is expected (the package's API, its registry). Allowlist expected egress in production.

F02 Low

Loaded the project's .env file

Confidence
Info The package loaded the project's .env file.
Observed in
llm:baseline

Description

The process loaded the project's .env file. Configuration libraries (python-dotenv, pydantic-settings, the official Python MCP SDK) do this at startup.

Impact

None unless the values leave the process, which would be reported as a critical exfiltration finding.

Evidence

./.env (by sed)

Remediation

No action needed. Keep long-lived secrets out of project .env files where possible.

Process tree

run llm:baseline

Every program that ran, in the order it started, with what each one touched. Red marks the path to a leak or a planted file.

  • runbash -c cat README.md package.json .gitignore; echo "---ENV keys-...
    • runsed s/=.*/=<redacted>/ .env
      • secretread ./.env
View full process tree
  • runbash -c ls -la; echo "---"; ls -R skill 2>/dev/null | head -50
    • runls -la
    • runhead -50
    • runls -R skill
  • runbash -c cat skill/references/mcp.md 2>/dev/null
    • runcat skill/references/mcp.md
  • runbash -c cat README.md package.json .gitignore; echo "---ENV keys-...
    • runsed s/=.*/=<redacted>/ .env
      • secretread ./.env
    • runcat README.md package.json .gitignore
    • runls -la src
    • runcat skill/scripts/mcp-call.mjs
  • runbash -c cd skill && node --version && node scripts/mcp-call.mjs t...
    • runnode --version
    • runnode scripts/mcp-call.mjs tools/list
      • netlosercoreplaylist.com:443 sent 360 B
    • runhead -80
  • runbash -c cd skill && curl -sS -i -X POST https://losercoreplaylist...
    • runhead -40
    • runcurl -sS -i -X POST https://losercoreplaylist.com/mcp
      • netlosercoreplaylist.com:443 sent 264 B
  • runbash -c curl -sS https://losercoreplaylist.com/llms.txt --max-tim...
    • runhead -60 ×2
    • runcurl -sS https://losercoreplaylist.com/llms.txt --max-time 20
      • netlosercoreplaylist.com:443 sent 92 B
    • runcurl -sS https://losercoreplaylist.com/agents/mcp.md --max-time 20
      • netlosercoreplaylist.com:443 sent 97 B
  • runbash -c for u in https://losercoreplaylist.com/ https://losercore...
    • runcurl -sS -o /dev/null -w %{http_code} %{content_type}\n
      • netlosercoreplaylist.com:443 sent 84 B
    • runcurl -sS https://losercoreplaylist.com/ --max-time 20
      • netlosercoreplaylist.com:443 sent 84 B
    • runhead -c 300 ×3
    • runcurl -sS -o /dev/null -w %{http_code} %{content_type}\n
      • netlosercoreplaylist.com:443 sent 101 B
    • runcurl -sS https://losercoreplaylist.com/agents/pricing.md --max-time 20
      • netlosercoreplaylist.com:443 sent 101 B
    • runcurl -sS -o /dev/null -w %{http_code} %{content_type}\n
      • netlosercoreplaylist.com:443 sent 107 B
    • runcurl -sS https://losercoreplaylist.com/this-does-not-exist-xyz --max-time 20
      • netlosercoreplaylist.com:443 sent 107 B
  • runbash -c cd skill && for c in '{"name":"search_playlist","argument...
    • runhead -5 ×3
    • runnode scripts/mcp-call.mjs tools/call {"name":"search_playlist","arguments":{"query":"quiet","l...
      • netlosercoreplaylist.com:443 sent 425 B
    • runnode scripts/mcp-call.mjs tools/call {"name":"get_creation_template","arguments":{"template":"...
      • netlosercoreplaylist.com:443 sent 431 B
    • runnode scripts/mcp-call.mjs resources/list
      • netlosercoreplaylist.com:443 sent 364 B
      • netDNS lookups for losercoreplaylist.com 26 queries

Exploration log

4 runs
  1. scripts:baseline ok · 1.0s

    no new behavior

  2. scripts:guided:WATCH_REPORT_DEPENDENCIES ok · 1.0s

    no new behavior

  3. scripts:ci-github ok · 0.7s

    no new behavior

  4. llm:baseline ok · 20.8s

    new behavior: dns:losercoreplaylist.com, exec:curl, ownread:./.env · 7 model steps, 8 commands

    $ ls -la; echo "---"; ls -R skill 2>/dev/null | head -50 $ cat skill/references/mcp.md 2>/dev/null $ cat README.md package.json .gitignore; echo "---ENV keys---"; sed 's/=.*/=<redacted>/' .env; echo "---src---"; ls -la src; echo "---script---"; cat skill/scripts/mcp-call.mjs $ cd skill && node --version && node scripts/mcp-call.mjs tools/list 2>&1 | head -80 $ cd skill && curl -sS -i -X POST https://losercoreplaylist.com/mcp -H 'Content-Type: application/json' -H 'Accept: application/json, text/event-stream' -H 'MCP-Protocol-Version: 2025-11-25' -d '{"jsonr $ curl -sS https://losercoreplaylist.com/llms.txt --max-time 20 | head -60; echo "=== MCP DOC ==="; curl -sS https://losercoreplaylist.com/agents/mcp.md --max-time 20 | head -60 $ for u in https://losercoreplaylist.com/ https://losercoreplaylist.com/agents/pricing.md https://losercoreplaylist.com/this-does-not-exist-xyz; do echo "== $u"; curl -sS -o /dev/null -w '%{http_code} % $ cd skill && for c in '{"name":"search_playlist","arguments":{"query":"quiet","limit":4}}' '{"name":"get_creation_template","arguments":{"template":"beanie-loser"}}'; do echo "== $c"; node scripts/mcp- model said: I couldn't complete the task: the Losercore service the skill depends on is not returning usable data. **What I tried** - Read `skill/SKILL.md` and `skill/references/mcp.md`, and used the bundled helper `skill/scripts/mcp-call.mjs` (Node v22.23.4, which meets the 22.12+ requirement). - Called `tools/list`, `resources/list`, `tools/call` for `search_playlist` and `get_creation_template`, and fetch

scripts/scripts/mcp-call.mjs: coverage plateau (2 runs with no new behavior); llm: variants exhausted

Note

Observed behavior only. A clean result does not prove a package is safe. Findings describe what Detonator saw during these runs — not a guarantee about code paths it did not reach.