Agent Stuff is a personal package of reusable skills, extensions, prompt commands, themes, and utilities for the Pi Coding Agent. Its author uses these tools across projects, and the catalogue entries are components from this package that support that workflow.
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 mitsuhiko/agent-stuff --skill sentrygit clone --depth 1 https://github.com/mitsuhiko/agent-stuffWrote 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/mitsuhiko/agent-stuff/sentry)<a href="https://agentmods.dev/skills/mitsuhiko/agent-stuff/sentry"><img src="https://agentmods.dev/badge/skills/mitsuhiko/agent-stuff/sentry/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/mitsuhiko/agent-stuff/sentry"><img src="https://agentmods.dev/badge/skills/mitsuhiko/agent-stuff/sentry.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00034 | $0.01978 |
| Opus 5.5 | $0.00014 | $0.00791 |
| Sonnet 5.5 | $0.00007 | $0.00396 |
| Haiku 4.5 | $0.00003 | $0.00198 |
Grade A, and why
sentry 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 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.
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.
How it starts
The opening of the file, as written. The whole thing — 240 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sentry Skill
Access Sentry data via the API for debugging and investigation. Uses auth token from ~/.sentryclirc.
Quick Reference
| Task | Command |
|---|---|
| Find errors on a date | search-events.js --org X --start 2025-12-23T15:00:00 --level error |
| List open issues | list-issues.js --org X --status unresolved |
| Get issue details | fetch-issue.js <issue-id-or-url> --latest |
| Get event details | fetch-event.js <event-id> --org X --project Y |
| Search logs | search-logs.js --org X --project Y "level:error" |
Common Debugging Workflows
"What went wrong at this time?"
Find events around a specific timestamp:
# Find all events in a 2-hour window
./scripts/search-events.js --org myorg --project backend \
--start 2025-12-23T15:00:00 --end 2025-12-23T17:00:00
# Filter to just errors
./scripts/search-events.js --org myorg --start 2025-12-23T15:00:00 \
--level error
# Find a specific transaction type
./scripts/search-events.js --org myorg --start 2025-12-23T15:00:00 \
--transaction process-incoming-email
"What errors have occurred recently?"
# List unresolved errors from last 24 hours
./scripts/list-issues.js --org myorg --status unresolved --level error --period 24h
# Find high-frequency issues
./scripts/list-issues.js --org myorg --query "times_seen:>50" --sort freq
# Issues affecting users
./scripts/list-issues.js --org myorg --query "is:unresolved has:user" --sort user
"Get details about a specific issue/event"
# Get issue with latest stack trace
./scripts/fetch-issue.js 5765604106 --latest
./scripts/fetch-issue.js https://sentry.io/organizations/myorg/issues/123/ --latest
./scripts/fetch-issue.js MYPROJ-123 --org myorg --latest
# Get specific event with all breadcrumbs
./scripts/fetch-event.js abc123def456 --org myorg --project backend --breadcrumbs
"Find events with a specific tag"
# Find by custom tag (e.g., thread_id, user_id)
./scripts/search-events.js --org myorg --tag thread_id:th_abc123
# Find by user email
./scripts/search-events.js --org myorg --query "user.email:*@example.com"
What ships with it
6 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.
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 · 240 lines · 34 tokens per session scan A 78f8229cfe66
sentry is a skill published in the GitHub repository mitsuhiko/agent-stuff (3,192 stars, last pushed 21d ago), licensed Apache-2.0. It adds 34 tokens to every session and 1,978 once invoked, about $0.0001 per session on Opus 5.5. 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.
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