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 agentmods add skills/ai-screams/howl/customizenpx skills add ai-screams/Howl --skill customizegit clone --depth 1 https://github.com/ai-screams/HowlWrote 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/ai-screams/howl/customize)<a href="https://agentmods.dev/skills/ai-screams/howl/customize"><img src="https://agentmods.dev/badge/skills/ai-screams/howl/customize.svg" alt="Measured on agentmods" 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 | $0.00015 | $0.02341 |
| Opus 5 | $0.00008 | $0.01171 |
| Sonnet 5 | $0.00003 | $0.00468 |
| Haiku 4.5 | $0.00002 | $0.00234 |
Grade B, and why
customize scanned grade B with 1 finding 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 5d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
cat > ~/.claude/hud/config.json << 'EOF' How it starts
The opening of the file, as written. The whole thing — 299 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Howl Customize
Advanced configuration for Howl statusline: choose a base preset, toggle individual metrics, and set display priority for Line 2.
Configuration Structure
{
"preset": "developer",
"features": {
"quota": true
},
"priority": ["quota", "git"],
"thresholds": {
"context_danger": 90
}
}
- preset: Base configuration (
full,minimal,developer,cost-focused) - features: Override specific metrics from the preset base (optional)
- priority: Reorder Line 2 metrics by importance (optional, max 5)
- thresholds: Override color/behavior breakpoints (optional, see
/howl:threshold)
Process
Step 1: Choose Base Preset
Use AskUserQuestion to present preset choices:
- Question: "Which base preset would you like to start with?"
- Header: "Choose Base Preset"
- Options (4):
- Label: "full (default)"
Description: "All 13 metrics - Complete visibility (2-4 lines)" - Label: "minimal"
Description: "Model + Context + Cost + Duration only (1 line)" - Label: "developer"
Description: "Coding focus: Account, Git, Changes, Cache, Vim (2 lines)" - Label: "cost-focused"
Description: "Budget tracking: Quota, API Wait, Cost Velocity (2 lines)"
- Label: "full (default)"
Store the user's selection as chosenPreset.
Step 2: Toggle Individual Metrics
Use AskUserQuestion with multiSelect to show metric toggles:
- Question: "Select which metrics to display (pre-checked = enabled in your preset)"
- Header: "Customize Metrics"
- Options (17 checkboxes):
- account - Account email
- git - Git branch + status
- line_changes - Code additions/deletions
- quota - Usage quota visualization
- tools - Tool call counts
- agents - Active agent indicators
- cache_efficiency - Cache hit percentage
- api_wait_ratio - API wait time ratio
- cost_velocity - Cost per minute
- vim_mode - Vim mode indicator
- agent_name - Current agent name
- output_tokens - Current-response output token count (
Out:1K) (default off) - effort - Effort level indicator (
E:high) (default off) - thinking - Extended thinking indicator (
Think) (default off) - session_name - Truncated session name (default off)
- pull_request - Linked PR status (
PR#1234 pending) (default off) - worktree - Active git worktree (
wt:name) (default off)
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.
- 5d ago First seen · 299 lines · 15 tokens per session scan B d87054eb9bb5
customize is a skill published in the GitHub repository ai-screams/Howl (5 stars, last pushed 1mo ago), licensed MIT. It adds 15 tokens to every session and 2,341 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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