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, a GitHub Actions environment and a production environment. It contacted pypi.org. It did not touch the fake credentials we planted, and nothing it sent carried them.

2 findings. Scanned 27 Oct 2026 by detonator 0.5.1.

Target
backlink-guard
Source
clawhub 0.11.0
SHA-256
c472e60491b3d5eb
Files
3
RecommendationNo action needed

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

batch:clawhub:2026-10-27

What this package does

observed across 4 runs
  1. Package backlink-guard 3 files · agent skill
  2. Install No install scripts of its ownOnly the package manager ran.
  3. Runs as ls -lawhich uv uvx pip python3envsed s/=.*/=<set>/ An AI agent also used it 1 time.
  4. What it reached
    Network
    • pypi.org 1 connection, 643 B sent
    Credentials
    • ./.envread
    Files written
    • ./questions.txtwritten

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

pypi.org

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 cd . && cat README.md; echo "--- package.json"; cat packa...
    • runsed s/=.*/=<redacted>/ .env
      • secretread ./.env
View full process tree
  • runbash -c cd . && ls -la && echo "---" && which uv uvx pip python3 ...
    • runls -la
    • runwhich uv uvx pip python3
    • runenv
    • runsed s/=.*/=<set>/
    • rungrep -iE GOANYAPI|GLASSER|AISA|BACKLINK
    • runls -la ~/.backlink-guard
  • runbash -c cd . && cat README.md; echo "--- package.json"; cat packa...
    • runsed s/=.*/=<redacted>/ .env
      • secretread ./.env
    • runcat README.md
    • runcat package.json
    • runls -la src skill
    • rungit log --oneline -5
  • runbash -c cd . && cat skill/_meta.json; echo "---"; cat skill/skill...
    • runcat skill/_meta.json
    • runcat skill/skill-card.md
    • runcat src/index.js
    • runcat .gitignore
  • runbash -c cd . && python3 --version; pip --version; pip download ba...
    • runpython3 --version
    • runpip --version
    • runpip download backlink-guard==0.11.0 --no-deps -d /tmp/bg
      • runlsb_release -a
        • rungetopt --name lsb_release -o hvidrcas -l
        • runcut -c1
        • runtr [:lower:] [:upper:]
        • runcut -c2-
        • runtr [:upper:] [:lower:] ×2
      • rununame -rs
    • runtail -5
  • runbash -c ls -la /tmp/bg 2>/dev/null; pip install backlink-guard==0...
    • runls -la /tmp/bg
    • runtail -5
    • runpip install backlink-guard==0.11.0
  • runbash -c cd /tmp && python3 -m venv bgvenv 2>&1 | tail -3 && /tmp/...
    • runtail -3
    • runpython3 -m venv bgvenv
    • runtail -8
  • run/tmp/bgvenv/bin/python3 -m ensurepip --upgrade --default-pip
  • runbash -c cd /tmp && rm -rf bgvenv && python3 -m venv --without-pip...
    • runrm -rf bgvenv
    • runpython3 -m venv --without-pip bgvenv
    • runtail -3
    • runls bgvenv/bin
    • runcurl -sS -m 15 -o /dev/null
      • netpypi.org:443 sent 643 B
      • netDNS lookups for pypi.org 4 queries

Exploration log

4 runs
  1. obedient:baseline ok · 1.7s

    new behavior: write:./questions.txt

    $ backlink-guard find "claude skills" "claude code skills" --site yoursite.com --json $ backlink-guard competitors yoursite.com --vs competitor-a.com competitor-b.com competitor-c.com --json $ backlink-guard competitors yoursite.com --vs competitor-a.com competitor-b.com --early --json $ backlink-guard cited yoursite.com "keyword one" "keyword two" --json $ backlink-guard questions "what the user makes, the way a buyer would put it" --plain > questions.txt backlink-guard asked yoursite.com --file questions.txt --name "Their Brand" --rank --json $ backlink-guard vet mcpservers.org turbo0.com navi.tools --json $ backlink-guard log add mcpservers.org --kind directory --anchor "Agent Skills Hub" --url https://mcpservers.org/submit backlink-guard log $ backlink-guard verify https://mcpservers.org/servers/you/your-tool --to yoursite.com backlink-guard log set mcpservers.org --status live --url https://mcpservers.org/servers/you/your-tool $ backlink-guard audit yoursite.com --deep --json $ backlink-guard lost yoursite.com --json
  2. obedient:ci-github ok · 2.5s

    no new behavior

    $ backlink-guard find "claude skills" "claude code skills" --site yoursite.com --json $ backlink-guard competitors yoursite.com --vs competitor-a.com competitor-b.com competitor-c.com --json $ backlink-guard competitors yoursite.com --vs competitor-a.com competitor-b.com --early --json $ backlink-guard cited yoursite.com "keyword one" "keyword two" --json $ backlink-guard questions "what the user makes, the way a buyer would put it" --plain > questions.txt backlink-guard asked yoursite.com --file questions.txt --name "Their Brand" --rank --json $ backlink-guard vet mcpservers.org turbo0.com navi.tools --json $ backlink-guard log add mcpservers.org --kind directory --anchor "Agent Skills Hub" --url https://mcpservers.org/submit backlink-guard log $ backlink-guard verify https://mcpservers.org/servers/you/your-tool --to yoursite.com backlink-guard log set mcpservers.org --status live --url https://mcpservers.org/servers/you/your-tool $ backlink-guard audit yoursite.com --deep --json $ backlink-guard lost yoursite.com --json
  3. obedient:production ok · 1.4s

    no new behavior

    $ backlink-guard find "claude skills" "claude code skills" --site yoursite.com --json $ backlink-guard competitors yoursite.com --vs competitor-a.com competitor-b.com competitor-c.com --json $ backlink-guard competitors yoursite.com --vs competitor-a.com competitor-b.com --early --json $ backlink-guard cited yoursite.com "keyword one" "keyword two" --json $ backlink-guard questions "what the user makes, the way a buyer would put it" --plain > questions.txt backlink-guard asked yoursite.com --file questions.txt --name "Their Brand" --rank --json $ backlink-guard vet mcpservers.org turbo0.com navi.tools --json $ backlink-guard log add mcpservers.org --kind directory --anchor "Agent Skills Hub" --url https://mcpservers.org/submit backlink-guard log $ backlink-guard verify https://mcpservers.org/servers/you/your-tool --to yoursite.com backlink-guard log set mcpservers.org --status live --url https://mcpservers.org/servers/you/your-tool $ backlink-guard audit yoursite.com --deep --json $ backlink-guard lost yoursite.com --json
  4. llm:baseline ok · 46.8s

    new behavior: dns:pypi.org, exec:curl, ownread:./.env, write:./bgvenv · token budget reached

    $ cd . && ls -la && echo "---" && which uv uvx pip python3 2>/dev/null; echo "---"; env | grep -iE 'GOANYAPI|GLASSER|AISA|BACKLINK' | sed 's/=.*/=<set>/'; echo "---"; ls -la ~/.backlink-guard 2>/dev/nul $ cd . && cat README.md; echo "--- package.json"; cat package.json; echo "--- .env keys"; sed 's/=.*/=<redacted>/' .env; echo "--- src"; ls -la src skill; echo "--- git"; git log --oneline -5 2>/dev/nul $ cd . && cat skill/_meta.json; echo "---"; cat skill/skill-card.md; echo "--- src/index.js"; cat src/index.js; echo "--- gitignore"; cat .gitignore $ cd . && python3 --version; pip --version; pip download backlink-guard==0.11.0 --no-deps -d /tmp/bg 2>&1 | tail -5 $ ls -la /tmp/bg 2>/dev/null; pip install backlink-guard==0.11.0 2>&1 | tail -5 $ cd /tmp && python3 -m venv bgvenv 2>&1 | tail -3 && /tmp/bgvenv/bin/pip install backlink-guard==0.11.0 2>&1 | tail -8 $ cd /tmp && rm -rf bgvenv && python3 -m venv --without-pip bgvenv 2>&1 | tail -3; ls bgvenv/bin 2>/dev/null; echo "---"; curl -sS -m 15 -o /dev/null -w "%{http_code}\n" https://pypi.org/simple/backlink model said: I'll start by checking the environment and what the user has set up.

obedient: 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.