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 cnfeat/top-pm-skills --skill microservices-decompositiongit clone --depth 1 https://github.com/cnfeat/top-pm-skillsWrote 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/cnfeat/top-pm-skills/microservices-decomposition)<a href="https://agentmods.dev/skills/cnfeat/top-pm-skills/microservices-decomposition"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/microservices-decomposition/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/cnfeat/top-pm-skills/microservices-decomposition"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/microservices-decomposition.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 | $0.00086 | $0.03913 |
| Opus 5.5 | $0.00034 | $0.01565 |
| Sonnet 5.5 | $0.00017 | $0.00783 |
| Haiku 4.5 | $0.00009 | $0.00391 |
Grade A, and why
microservices-decomposition 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 — 299 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Microservices Decomposition
Produce a complete microservices decomposition design for a system — whether decomposing an existing monolith or designing service boundaries for a new system. Ground the decomposition in Domain-Driven Design (DDD) concepts: identify bounded contexts first, then derive service boundaries from them. Include communication pattern decisions (sync vs. async, event vs. RPC), data ownership rules, and a pragmatic migration plan if decomposing a monolith. Conway's Law is real — include an organizational alignment section. The deliverable should be specific enough that a team can begin implementation, not an abstract architectural diagram.
Required Inputs
Ask for these if not already provided:
- System or domain description — what the system does, its core domain, and the key business processes it supports
- Current architecture — monolith (describe the tech stack and rough module structure), partial services (list existing services), or greenfield
- Team structure — number of teams, team names if known, and approximate team sizes; this drives service ownership
- Performance and scalability requirements — any specific SLAs, load characteristics, or scaling constraints per domain area
- Migration constraints — what cannot be rewritten all at once, hard deadlines, zero-downtime requirements, budget constraints
- Integration points — external systems, third-party APIs, or legacy systems that cannot be changed
If decomposing a monolith, also ask for: approximate codebase size, what is most painful to change today, and where the team experiences the most coupling-related friction.
Output Format
Microservices Decomposition: [System Name]
Author: [Name / Team] Date: [Date] Architecture type: [Monolith decomposition / New system design] Current state: [One sentence describing what exists today] Target state: [One sentence describing the desired end state]
1. Domain Analysis
Core Domain
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 · 299 lines · 86 tokens per session scan A 7079ef22aa69
microservices-decomposition is a skill published in the GitHub repository cnfeat/top-pm-skills (55 stars, last pushed 4mo ago), licensed MIT. It adds 86 tokens to every session and 3,913 once invoked, about $0.0003 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 2026-09-03.
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