Deno is a runtime that executes JavaScript, TypeScript, and WebAssembly programs outside a browser. Developers use it for applications such as web servers, and the catalogue add-ons provide workflows and guidance for Deno projects.
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/denoland/deno/issue-triagenpx skills add denoland/deno --skill issue-triagegit clone --depth 1 https://github.com/denoland/denoWrote 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/denoland/deno/issue-triage)<a href="https://agentmods.dev/skills/denoland/deno/issue-triage"><img src="https://agentmods.dev/badge/skills/denoland/deno/issue-triage.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 5.1 | $0.00047 | $0.01855 |
| Opus 5 | $0.00023 | $0.00928 |
| Sonnet 5 | $0.00009 | $0.00371 |
| Haiku 4.5 | $0.00005 | $0.00186 |
Grade C, and why
issue-triage scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf "$REPRO_DIR" How it starts
The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Deno Issue Triage
Triage issue $ARGUMENTS on the denoland/deno repository.
Step 1: Read the issue
gh issue view $ARGUMENTS --repo denoland/deno --json number,title,body,author,labels,state,comments,createdAt,url
Step 2: Classify the issue
Determine what kind of issue this is:
- Bug report — something isn't working as expected
- Feature request / suggestion — a new capability or enhancement
- Question — a usage question, not a bug
- Duplicate — already reported (search closed and open issues with
gh issue list --search "keywords" --state all) - Invalid — not actionable, not a Deno issue, or insufficient info
If the issue is clearly a question, duplicate, or invalid, skip reproduction and go straight to Step 5.
Step 3: Check for missing information
A valid bug report needs:
- Deno version (
deno --versionoutput) - Operating system
- Reproduction steps or minimal reproduction code
- Expected behavior vs actual behavior
If any of these are missing, label as needs info and comment asking the author
to provide the missing details. Do not attempt reproduction without a clear
repro case.
Step 4: Reproduce the bug
Only attempt reproduction for bug reports that have a clear repro case.
Setup
Prefer running reproductions inside a Docker container for isolation. Fall back to a local temp directory only if Docker is unavailable.
Docker (preferred):
# Run repro with latest canary
docker run --rm -v "$REPRO_DIR":/repro -w /repro denoland/deno:canary deno run repro.ts
# Run repro with a specific version (e.g., 2.1.4)
docker run --rm -v "$REPRO_DIR":/repro -w /repro denoland/deno:2.1.4 deno run repro.ts
Use docker run --rm so containers are cleaned up automatically. Mount the
repro files via -v.
Local fallback (if Docker is not available):
REPRO_DIR=$(mktemp -d)
deno run "$REPRO_DIR/repro.ts"
Get Deno versions
Try to reproduce with both:
- The version from the issue (if specified) — to confirm the bug exists
- Latest canary — to check if it's already fixed
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.
- 6d ago First seen · 228 lines · 47 tokens per session scan C 52756b70f45b
issue-triage is a skill published in the GitHub repository denoland/deno (108,370 stars, last pushed yesterday), licensed MIT. It adds 47 tokens to every session and 1,855 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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