Perform Security Review

What it does

When your agent uses it

• The user asks for a perform-security-review
• Bitwarden-security-review
• Execute a security review
• Run a comprehensive security audit

Example prompts

• “perform-security-review”
• “bitwarden-security-review”
• “execute a security review”
• “/perform-security-review”

Requirements

• Pre-approved tools (allowed-tools): Bash(gh pr diff:*), Bash(gh pr view:*), Bash(gh repo view --json defaultBranchRef:*), Bash(git branch --show-current:*), Bash(git diff:*), Bash(git log:*), Bash(git merge-base:*), Bash(git remote get-url:*), Bash(git rev-parse:*), Bash(printenv GITHUB_ACTIONS), Read, Skill, Task, Write, mcp__plugin_aikido_aikido-mcp__aikido_issues_list

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

1. 1Gather context. Run all of these before launching any agents.
2. 2Launch these four (4) subagent_type: "bitwarden-security-engineer:bitwarden-security-engineer" agents in parallel. Each agent has a…
3. 3After all four agents return, rate each finding using the two-axis model defined in references/security-review-rubric.md
4. 4Launch a verification agent subagent_type: "bitwarden-security-engineer:bitwarden-security-engineer" with all combined findings, their…
5. 5Format the summary report.
6. 6Check the --output argument to determine the output destination. If --output is omitted, run printenv GITHUB_ACTIONS as its own Bash call…
7. 7Clear the temporary diff file. If step 1B created DIFF_FILE, use the Write tool to overwrite it with an empty string, in every output mode…

What it can do on your machine

Read from SKILL.md and the folder at commit 3e6bea3. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Bash(gh pr diff:*)
  • Bash(gh pr view:*)
  • Bash(gh repo view --json defaultBranchRef:*)
  • Bash(git branch --show-current:*)
  • Bash(git diff:*)
  • Bash(git log:*)
  • Bash(git merge-base:*)
  • Bash(git remote get-url:*)
  • Bash(git rev-parse:*)
  • Bash(printenv GITHUB_ACTIONS)

  …and 5 more on the same allowed-tools line.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • gh
  • git

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Hosts in commands or code, which the agent is likely to contact:

  • github.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Perform Security Review loads about 5.5k tokens when it runs, and up to ~9.2k if it reads all its reference files. Until then it costs about 152 tokens; SKILL.md has 2,545 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~152

When it runs · the whole SKILL.md, loaded when a task matches

~5.5k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~9.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,545 words (~5,513 tokens).

name

perform-security-review

allowed-tools

Bash(gh pr diff:*), Bash(gh pr view:*), Bash(gh repo view --json defaultBranchRef:*), Bash(git branch --show-current:*), Bash(git diff:*), Bash(git log:*), Bash(git merge-base:*), Bash(git remote get-url:*), Bash(git rev-parse:*), Bash(printenv GITHUB_ACTIONS), Read, Skill, Task, Write, mcp__plugin_aikido_aikido-mcp__aikido_issues_list

argument-hint

[--output <chat|file|github>] [--output-dir <path>] [--model <model>] [--base-ref <ref>] [pr-number-or-url|commit-sha|duration]

Read the full SKILL.md on GitHub

Files

SKILL.md and 3 other files (references) in plugins/bitwarden-security-engineer/skills/perform-security-review of bitwarden/ai-plugins.

• SKILL.md
• references/base-ref-resolution.md
• references/security-review-rubric.md
• references/tool-grants.md

Open the folder on GitHubat commit 3e6bea3