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.
npx skills add cfircoo/claude-code-toolkit --skill damage-controlgit clone --depth 1 https://github.com/cfircoo/claude-code-toolkitWrote 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.
[](https://agentmods.dev/skills/cfircoo/claude-code-toolkit/damage-control)<a href="https://agentmods.dev/skills/cfircoo/claude-code-toolkit/damage-control"><img src="https://agentmods.dev/badge/skills/cfircoo/claude-code-toolkit/damage-control/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/cfircoo/claude-code-toolkit/damage-control"><img src="https://agentmods.dev/badge/skills/cfircoo/claude-code-toolkit/damage-control.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00057 | $0.01541 |
| Opus 5.5 | $0.00023 | $0.00616 |
| Sonnet 5.5 | $0.00011 | $0.00308 |
| Haiku 4.5 | $0.00006 | $0.00154 |
Grade C, and why
damage-control scanned grade C with 5 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 1mo 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.
Asks for rootlowPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- `rm -rf`, `rm --recursive`, `sudo rm` Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Downloads and executes remote codemediumSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -LsSf https://astral.sh/uv/install.sh | sh Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Reads agent configuration directorieslowAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
| Global | `~/.claude/settings.json` | `~/.claude/hooks/damage-control/` | All projects | Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Recursive force deletemediumDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
description: Install, configure, and manage Claude Code security hooks that block dangerous commands and protect sensitive files. Use when setting up security protection, blocking destructive commands (rm -rf, git reset Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -LsSf https://astral.sh/uv/install.sh | sh How it starts
The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
<protection_levels>
| Level | Read | Write | Edit | Delete | Use Case |
|---|---|---|---|---|---|
| zeroAccessPaths | No | No | No | No | Secrets, credentials, .env files |
| readOnlyPaths | Yes | No | No | No | System configs, lock files, build artifacts |
| noDeletePaths | Yes | Yes | Yes | No | Important project files, .git/, LICENSE |
| </protection_levels> |
<how_it_works> PreToolUse hooks intercept tool calls at three points:
- Bash Hook - Evaluates commands against regex patterns and path restrictions
- Edit Hook - Validates file paths before modifications
- Write Hook - Checks paths before file creation
Exit codes:
0= Allow operation0+ JSON = Ask for confirmation (triggers dialog)2= Block operation (stderr fed back to Claude)
Ask patterns: Some operations trigger confirmation dialogs instead of blocking:
git checkout -- .(discards changes)git stash drop(deletes stash)DELETE FROM table WHERE id=X(SQL with specific ID) </how_it_works>
<quick_start> Interactive installation:
/damage-control install
Or ask Claude:
"Install damage control security hooks" "Set up protection for my project" </quick_start>
- Install - Set up damage control hooks (global, project, or personal)
- Modify - Add/remove protected paths or blocked commands
- Test - Validate hooks are working correctly
- List - View all active protections across all levels
Wait for response before proceeding.
Direct command routing (skip menu):
- "add ~/.credentials to zero access" → Execute directly, then restart reminder
- "block npm publish command" → Execute directly, then restart reminder
- "protect /secrets folder" → Execute directly, then restart reminder
After reading the workflow, follow it exactly.
<blocked_commands_summary> Destructive file operations:
rm -rf,rm --recursive,sudo rmchmod 777,chown -R root
Git destructive:
git reset --hard,git push --force(not --force-with-lease)git clean -fd,git stash clear,git filter-branch
Cloud destructive:
- AWS:
terminate-instances,delete-db-instance,delete-stack - GCP:
projects delete,instances delete,clusters delete - Docker:
system prune -a,volume rm - Kubernetes:
delete namespace,delete all --all
Database destructive:
DELETE FROM table;(no WHERE clause)DROP TABLE,DROP DATABASE,TRUNCATE TABLEredis-cli FLUSHALL,dropdb
See scripts/patterns.yaml for complete list. </blocked_commands_summary>
<settings_locations>
| Level | Settings Path | Hooks Path | Scope |
|---|---|---|---|
| Global | ~/.claude/settings.json |
~/.claude/hooks/damage-control/ |
All projects |
| Project | .claude/settings.json |
.claude/hooks/damage-control/ |
Team-shared |
| Personal | .claude/settings.local.json |
.claude/hooks/damage-control/ |
Just you |
| </settings_locations> |
<runtime_requirements> Python with UV (Recommended):
# macOS/Linux
curl -LsSf https://astral.sh/uv/install.sh | sh
# Windows
powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"
TypeScript with Bun (Alternative):
# macOS/Linux
curl -fsSL https://bun.sh/install | bash && bun add yaml
# Windows
powershell -c "irm bun.sh/install.ps1 | iex" && bun add yaml
</runtime_requirements>
What ships with it
11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- scripts/bash-tool-damage-control.py 12 KB runs code
- scripts/edit-tool-damage-control.py 4.3 KB runs code
- scripts/patterns.yaml 22 KB
- scripts/read-tool-damage-control.py 4.2 KB runs code
- scripts/settings-template.json 1.3 KB
- scripts/test-damage-control.py 14 KB runs code
- scripts/write-tool-damage-control.py 4.3 KB runs code
- workflows/install.md 5.0 KB
- workflows/list.md 2.3 KB
- workflows/modify.md 4.5 KB
- workflows/test.md 4.3 KB
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.
- 1mo ago First seen · 164 lines · 57 tokens per session scan C 538625b9e8d4
damage-control is a skill published in the GitHub repository cfircoo/claude-code-toolkit (17 stars, last pushed 6mo ago), licensed MIT. It adds 57 tokens to every session and 1,541 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it C with 5 findings (asks for root, downloads and executes remote code, reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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