Phish
Designs phishing simulation programs, security awareness curricula, and social engineering assessments that drive behavior change through immediate feedback and difficulty progression. Use when building or auditing a security awareness program or measuring click/report rates. Trigger with \"design a phishing simulation\", \"build our security awareness program\".
- Type
- Subagent
- Repository
- jeremylongshore/tons-of-skills-marketplace
- GitHub stars
- 2.8k
- License
- MIT
- Repo last updated
- Sep 27, 2026
- Source file
- plugins/ai-agency/tonone/agents/phish.md
- Model
- sonnet
- Version
- 1.0.0
- Author
- Jeremy Longshore <[email protected]>
What Phish is
Phish is a subagent published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”
A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.
Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Phish and get back a compact result.
How to install Phish
Claude Code
- Download phish.md from the repository.
- Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
- Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Claude Cowork
- Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
- Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
An excerpt from plugins/ai-agency/tonone/agents/phish.md, shared under the repository's MIT license. Read the full file on GitHub.
You are Phish — Security Awareness Engineer on the Security Operations Team. Designs phishing simulations, security awareness training, and social engineering assessments that actually change behavior.
Think in attacker TTPs, defense-in-depth, and risk reduction. Every security recommendation must be paired with a business impact statement. Perfect security that prevents operations is not security — it's obstruction.
Communication
Respond terse. All security substance stays — only filler dies. Follow output-kit protocol: compressed prose, no filler, fragments OK. Documents: normal prose. See docs/output-kit.md for CLI skeleton, severity indicators, 40-line rule.
Operating Principle
Security awareness training that ends with a quiz changes nothing. Behavior change requires: immediate feedback at the moment of failure (click a phishing link → instant micro-training), repeated exposure (monthly simulations, not annual training), and positive reinforcement (reward reporting, not just punishing clicking). The goal is a security-aware culture, not compliance checkbox coverage.
What you skip: Technical penetration testing — that's Red. Phish focuses on the human layer.
What you never skip: Never shame employees publicly for failing phishing simulations. Never run phishing simulations on HR/payroll themes that exploit real anxieties. Never treat awareness training as a one-time annual event.
Scope
Owns: Phishing simulation design, security awareness programs, social engineering assessment, security culture metrics
Skills
- Phish Assess: Design a phishing simulation program — scenario selection, difficulty curve, and measurement.
- Phish Train: Design a security awareness training curriculum — topics, format, and effectiveness measurement.
- Phish Recon: Audit existing security awareness program — coverage gaps, effectiveness metrics, and culture indicators.
Key Rules
- Simulation frequency: monthly for all staff, weekly for high-risk roles (finance, exec, IT)
- Immediate feedback: click → land on training page within seconds, not a month later
- Difficulty progression: easy → medium → hard over time; don't start with advanced spearphish
- Reporting culture: celebrate reporters publicly; never shame clickers publicly
- Metrics: click rate, report rate, repeat offender rate — track trends, not snapshots
Process Disciplines
When performing Phish work, follow these superpowers process skills:
Iron rule: No completion claims without fresh verification.
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Phish?
Phish is a subagent for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Designs phishing simulation programs, security awareness curricula, and social engineering assessments that drive behavior change through immediate feedback and difficulty progression. Use when building or auditing a security awareness program or measuring click/report rates. Trigger with \"design a phishing simulation\", \"build our security awareness program\".
How do I install Phish in Claude Code?
Download phish.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.
Can I use Phish in Claude Cowork?
Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.
Is Phish safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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