bob-update

bob-update is a command for Claude Code from vmihalis/hacker-bob. It costs 0 tokens per session (200 once invoked), scanned A, original, Apache-2.0.

A command that checks whether the installed Hacker Bob security-testing workflow has an available update. Hacker Bob is a tool for evaluating projects for security vulnerabilities.

In plain words
What is it for?
Use it to check the installed version, approve an available update, and complete the required cache-clearing step. It is intended for projects that already use Hacker Bob.
Why use it?
It prevents an update from being installed without the operator's confirmation. It also clears the update cache and reminds the operator to restart the coding tool when needed.

Command for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/vmihalis/hacker-bob/bob-update
Clone the repo
git clone --depth 1 https://github.com/vmihalis/hacker-bob

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for bob-update

README.md
[![agentmods](https://agentmods.dev/badge/commands/vmihalis/hacker-bob/bob-update.svg)](https://agentmods.dev/commands/vmihalis/hacker-bob/bob-update)
Your own site
<a href="https://agentmods.dev/commands/vmihalis/hacker-bob/bob-update"><img src="https://agentmods.dev/badge/commands/vmihalis/hacker-bob/bob-update.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 200 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00200
Opus 5 $0.00000 $0.00100
Sonnet 5 $0.00000 $0.00040
Haiku 4.5 $0.00000 $0.00020

Measured 4d ago against content hash 27aa1327b976, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bob-update scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/bob-update.md · 17 lines

What it actually says

Run the installed Hacker Bob update workflow for this project.

  1. Run: node "${CLAUDE_PROJECT_DIR:-$PWD}/.claude/hooks/bob-update.js" plan "${CLAUDE_PROJECT_DIR:-$PWD}"
  2. If the helper says Hacker Bob is already up to date or cannot reach npm, report that result and stop.
  3. If an update is available or the install is legacy, ask the operator exactly: Update now?
  4. Only when the operator confirms, run: npx -y hacker-bob@latest install "${CLAUDE_PROJECT_DIR:-$PWD}"
  5. Then run: node "${CLAUDE_PROJECT_DIR:-$PWD}/.claude/hooks/bob-update.js" clear-cache "${CLAUDE_PROJECT_DIR:-$PWD}"
  6. Tell the operator to fully restart Claude Code in this project before continuing.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 17 lines · 0 tokens per session scan A 27aa1327b976

Subscribe to this mod's changes

bob-update is a command published in the GitHub repository vmihalis/hacker-bob (97 stars, last pushed 5d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 200 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.