Is reforge-mcp@0.4.3 safe to install?

reforge-mcp@0.4.3

CAUTION

Publisher claims: "MCP server that automatically cleans up messy vibe-coded repositories" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher codewithaiyan · joined 2 days agoInstalls 12Last detonated 45 h ago

What would fix this Watch Dispute verdict

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-01 and scored it 63/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Prompt injection; Destructive file system command detected; Destructive command against a filesystem root or device. 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

0.2sprocessdependency install exit 1

0.2sprocessexec /usr/bin/timeout

0.2sprocessexec .venv/bin/reforge-mcp

0.2sprocessexited 127: timeout: failed to run command '.venv/bin/reforge-mcp': No such file or directory

0.2sclaimedno tools/list reply (exit 127)

0.2sprocessscript backend runs setup only

Static findings

CRITICAL

Prompt injectionIMPROVEMENTS.md:516 · Prompt injection — known jailbreak technique referenceFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.

AST01

HIGH

Destructive file system command detectedsrc/reforge_mcp/utils/security.py:262 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

CRITICAL

Destructive command against a filesystem root or devicesrc/reforge_mcp/utils/security.py:223 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

CRITICAL

Destructive command against a filesystem root or devicesrc/reforge_mcp/utils/security.py:262 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

HIGH

Access to sensitive file pathssrc/reforge_mcp/utils/security.py:36 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.

AST05

CRITICAL

Destructive command against a filesystem root or devicesrc/reforge_mcp/utils/security.py:261 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

HIGH

Destructive file system command detectedsrc/reforge_mcp/utils/security.py:261 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

HIGH

Authorization escalation languageIMPROVEMENTS.md:511 · Authorization escalation languageFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

HIGH

Destructive file system command detectedsrc/reforge_mcp/utils/security.py:223 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

HIGH

Access to sensitive file pathssrc/reforge_mcp/utils/security.py:65 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.

AST05

HIGH

Authorization escalation languageIMPROVEMENTS.md:516 · Authorization escalation languageFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

HIGH

Access to sensitive file pathssrc/reforge_mcp/utils/security.py:38 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.

AST05

CRITICAL

Prompt injectionIMPROVEMENTS.md:511 · Prompt injection — known jailbreak technique referenceFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.

AST01

MEDIUM

Python subprocess execution detectedtests/test_cap_report.py:29 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Destructive command against a filesystem root or devicetests/test_fix.py:97 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Destructive file system command detectedtests/test_fix.py:97 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Python subprocess execution detectedtests/test_fix.py:267 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Access to sensitive file pathstests/test_git.py:83 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: 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_fix.py:264 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedtests/test_kotlin_graph.py:32 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedtests/test_kotlin_graph.py:33 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedtests/test_cap_report.py:27 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Destructive command against a filesystem root or devicetests/test_security.py:232 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Python subprocess execution detectedtests/test_cap_report.py:28 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

File type combined with upload action.claude/settings.json:9 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.

AST07

HIGH

Access to sensitive file pathssrc/reforge_mcp/utils/security.py:66 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: 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_fix.py:266 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedtests/test_kotlin_graph.py:31 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedsrc/reforge_mcp/tools/fix.py:174 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Access to sensitive file pathstests/test_security.py:128 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.

AST05

MEDIUM

Destructive command against a filesystem root or devicetests/test_security.py:343 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Access to sensitive file pathstests/test_security.py:258 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.

AST05

MEDIUM

Destructive command against a filesystem root or devicetests/test_security.py:245 · Destructive command against a filesystem root or deviceFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Access to sensitive file pathstests/test_security.py:282 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: 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_security.py:130 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.

AST05

MEDIUM

Destructive file system command detectedtests/test_security.py:232 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Python subprocess execution detectedtests/test_sweep_findings.py:23 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Destructive file system command detectedtests/test_security.py:245 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Python subprocess execution detectedtests/test_sweep3_findings.py:22 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedtests/test_sweep3_findings.py:20 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Destructive file system command detectedtests/test_security.py:343 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

Python subprocess execution detectedtests/test_sweep_findings.py:25 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedtests/test_sweep3_findings.py:21 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

MEDIUM

Python subprocess execution detectedtests/test_sweep_findings.py:24 · Python subprocess execution detectedFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

AST05

What would make this Verified

17 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%

Destructive command against a filesystem root or device≈ +9 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
Unclaimed publisher≈ +8 on the totalClaim codewithaiyan: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
Does not do what the description says≈ +5 on the totalIn the sandbox the skill never performed the task it claims (no call to the service it is for). Make sure the happy path runs without extra setup, or describe the real behavior.
Destructive file system command detected≈ +4 on the totalBuild commands from fixed arguments; do not interpolate untrusted strings into a shell.
Access to sensitive file paths≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
Python subprocess execution detected≈ +2 on the totalBuild commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.

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