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.
git clone --depth 1 https://github.com/ngocsangyem/MeowKitWrote 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/commands/ngocsangyem/meowkit/arch)<a href="https://agentmods.dev/commands/ngocsangyem/meowkit/arch"><img src="https://agentmods.dev/badge/commands/ngocsangyem/meowkit/arch/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/commands/ngocsangyem/meowkit/arch"><img src="https://agentmods.dev/badge/commands/ngocsangyem/meowkit/arch.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 | $0.00000 | $0.00463 |
| Opus 5.5 | $0.00000 | $0.00185 |
| Sonnet 5.5 | $0.00000 | $0.00093 |
| Haiku 4.5 | $0.00000 | $0.00046 |
Grade A, and why
arch 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 — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/arch — Architecture Decision Records
Usage
/arch new [title]
/arch list
/arch review [number]
/arch impact [change description]
Behavior
Architecture as a first-class concern. Manages Architecture Decision Records (ADRs) and analyzes architectural impact of proposed changes.
Modes
/arch new [title]
Generate a new ADR using the architect agent.
- Assign the next sequential ADR number.
- Gather context: What decision needs to be made? What are the constraints? What options exist?
- Generate ADR with sections: Title, Status (Proposed), Context, Decision, Consequences, Alternatives Considered.
- Write to
docs/architecture/adr/YYMMDD-title.md. - Print summary and ask for review.
/arch list
List all ADRs with their current status.
- Scan
docs/architecture/adr/directory. - Print table:
# | Title | Status 1 | Use PostgreSQL for persistence | Accepted 2 | Event-driven architecture | Proposed 3 | Monorepo structure | Superseded by #5
/arch review [number]
Review and update an existing ADR.
- Read the specified ADR.
- Evaluate: Is the decision still valid? Has context changed? Are there new alternatives?
- Update status if needed: Proposed → Accepted, Accepted → Deprecated, Accepted → Superseded by #N.
- Add review notes with date.
/arch impact [change description]
Analyze the architectural impact of a proposed change.
- Parse the change description.
- Identify which architectural decisions (ADRs) are affected.
- Identify which system boundaries are crossed.
- Assess: Does this change align with existing ADRs or conflict with them?
- Print impact assessment: affected components, affected ADRs, risk level, recommendation.
Output
- For
new: ADR file atdocs/architecture/adr/YYMMDD-title.md - For
list: table of all ADRs - For
review: updated ADR file - For
impact: printed impact assessment with affected components and recommendations
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 · 66 lines · 0 tokens per session scan A 07e047aba717
arch is a command published in the GitHub repository ngocsangyem/MeowKit (15 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 463 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.
Other commands, from other repositories
valuation-methods
Valuation methods analysis — multiples, DCF inputs, PEG integration, valuation assumption extraction.
genshijin-compress
A command for safely shortening Markdown or text files into the genshijin style.
design-form
Design a form with the fewest fields that works, clear labels, and errors that help.
review
Submit a story for verification (In Progress → In Review, no PR yet).
standup
Alias of /board — the async sprint snapshot.
enum-udp
UDP scan + service follow-up — top ports first, full sweep only when justified.