plugin-dev@0.1.2

VERIFIED· install only

Publisher claims: "Comprehensive toolkit for developing Claude Code plugins. Includes 7 expert skills covering hooks, MCP integration, commands, agents, and best practices. AI-assisted plugin creation and validation." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry Claude Code plugin marketplacePublisher anthropics · publishing for 436 daysInstalls 0Last detonated 3d ago
$/plugin install plugin-dev@claude-code
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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

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 2026-11-11 and scored it 83/100 (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 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

CRITICAL
HTML comment carrying imperative instructions to the agentskills/command-development/SKILL.md:452 · HTML comment carrying imperative instructions to the agentUsage: /deploy [staging|production] [version] Requires: AWS credentials configured Example: /deploy staging v1.2.3Fix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
CRITICAL
Context shift attemptskills/hook-development/SKILL.md:602 · Context shift attempt — trying to change operational mode### Enable Debug ModeFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
LOW
Context shift attemptskills/mcp-integration/references/authentication.md:383 · Context shift attempt — trying to change operational mode · informational: not an instruction file**Enable debug mode:**Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
File permission modification commandskills/plugin-settings/SKILL.md:420 · File permission modification command — agent changes file ownership/permissions- Readable by user only (`chmod 600`)Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05
HIGH
Access to sensitive file pathsskills/hook-development/SKILL.md:461 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesif [[ "$file_path" == *".env"* ]]; thenFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
File permission modification commandskills/hook-development/scripts/hook-linter.sh:38 · File permission modification command — agent changes file ownership/permissionsecho "⚠️ Not executable (chmod +x $script)"Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05

Cost to the agent

Instructions loaded
≈26,734 tok
7 files · 60 in bundle

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.

plugin-dev@0.1.2 safety verdict: Verified (install only) — KillerSkills