Agent skill

Solution Architecture

by cbrock84 in cbrock84/headcount

Designs system structure and makes architectural decisions defensible — boundaries, coupling, trade-offs, and recording why.

MITAuto-check passedDevelopment

Install Solution Architecture

skills CLI
$ npx skills add cbrock84/headcount --skill solution-architecture -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install cbrock84/headcount solution-architecture --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/cbrock84/headcount.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/technology/skills/solution-architecture .claude/skills/solution-architecture && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
solution-architecture
GitHub stars
2k
Token cost
~804 tokens
SKILL.md length
427 words
Files
2 (incl. references)
Skills in repo
175
Repo updated
First seen
Licence
MIT

At a glance

Designs system structure and makes architectural decisions defensible — boundaries, coupling, trade-offs, and recording why.

  • Tasks that involve Software architecture
  • SKILL.md covers Start from what constrains,…, Boundaries are the whole game, Trade-offs, stated and Record decisions, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Solution Architecture is an agent skill from cbrock84/headcount. Designs system structure and makes architectural decisions defensible — boundaries, coupling, trade-offs, and recording why. Use this to design a new system or major component, choose between architectural options, review an existing design, decide where a boundary belongs, or document an architectural decision so it survives the people who made it.

Its SKILL.md is about 800 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/sources.md`).

It sits in Development, covering Software architecture. The repository describes itself as: An agent organization structured as a company — 15+ departments, 125+ skills, each independently installable, citing the standards and regulators that settle the question. Runs… The licence is MIT.

When your agent uses it

  • Tasks that involve Software architecture

Example prompts

  • “Use the solution-architecture skill to design system structure and makes architectural decisions defensible — boundaries, coupling, trade-offs, and…”
  • “/solution-architecture”

What it can do on your machine

Read from SKILL.md and the folder at commit 98d1c17. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Solution Architecture loads about 804 tokens when it runs, and up to ~1k if it reads all its reference files. Until then it costs about 93 tokens; SKILL.md has 427 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~93
When it runs · the whole SKILL.md, loaded when a task matches
~804
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from cbrock84/headcount at commit 98d1c17, republished under its MIT licence (© cbrock84). 427 words, ~804 tokens.

Download SKILL.mdSave it as .claude/skills/solution-architecture/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
solution-architecture
description
Designs system structure and makes architectural decisions defensible — boundaries, coupling, trade-offs, and recording why. Use this to design a new system or major component, choose between architectural options, review an existing design, decide where a boundary belongs, or document an architectural decision so it survives the people who made it.

Solution architecture

Architecture is the set of decisions that are expensive to reverse. Everything cheap to change later is design, and does not need this level of ceremony.

Start from what constrains, not from what appeals

Architecture is driven by quality attributes, not by features. Establish the ones that actually bind before drawing anything: expected load and its shape, latency the user notices, availability the business will fund, data residency and retention obligations, the rate of change the team needs to sustain, and the size and skills of the team who will operate it.

Vague attributes produce vague architecture. "Scalable" is not a requirement; "20,000 concurrent sessions with p99 under 300ms" is a constraint that eliminates options.

Boundaries are the whole game

Draw boundaries where change is independent and where data has a single owner. A boundary in the right place absorbs change; a boundary in the wrong place turns every feature into a negotiation across three teams.

The reliable test: if a routine change requires coordinated deployment across two components, the boundary is wrong regardless of how clean the diagram looks.

Prefer coarse boundaries until you have evidence for finer ones. Distributed systems convert simple in-process failures into network, partial-failure and consistency problems — a cost worth paying for independent scaling or independent deployment, and not worth paying for tidiness.

Trade-offs, stated

Every architecture sacrifices something. The failure is not choosing badly; it is choosing without naming what was given up, so nobody later understands why the constraint exists.

Present options with their costs: what each makes easy, what each makes hard, what it costs to operate, and what it would take to reverse. Two credible options and an honest comparison beat one recommendation.

Show full SKILL.md (143 more words)Show less

Record decisions

Write down the decision, the context at the time, the options considered, and the consequences accepted. Architecture rots because the reasoning evaporates while the structure remains, and the next team reads a constraint as an accident.

Keep records short and immutable — supersede rather than edit, so the history of thinking survives.

Sources

references/sources.md in this skill lists the outside authorities that settle the questions here — what each one is authoritative for, and what you may do with it. Check them before answering on anything they cover, and cite what you used. Most are free to read and not free to reproduce; the use note on each is binding.

Never

  • Design against quality attributes nobody has quantified.
  • Split a system into services to make the diagram tidy.
  • Present a single option as though no trade-off was made.
  • Leave an expensive-to-reverse decision undocumented.

© cbrock84, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in plugins/technology/skills/solution-architecture of cbrock84/headcount.

  • SKILL.md
  • references/sources.md

Open the folder on GitHubat commit 98d1c17

Compare with similar skills

Solution Architecture next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Solution Architecture compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Solution Architecture this skillcbrock84/headcount2k—~804Automated safety check: PassMIT
Archify Diagramstt-a1i/archify79k—~2.9kAutomated safety check: PassMIT
Electron Multi-Process ArchitectureiOfficeAI/AionUi33k1 repos~1.8kAutomated safety check: PassApache-2.0
Backend Code Reviewlanggenius/dify158k—~676Automated safety check: PassCustom licence
Dark Architecture Diagram BuilderCocoon-AI/architecture-diagram-generator7.4k1 repos~2.1kAutomated safety check: PassMIT
Code Graph Mermaid Diagramstrailofbits/skills7.4k1 repos~1.7kAutomated safety check: PassCC-BY-SA-4.0

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Categories

Questions about Solution Architecture

What does Solution Architecture do?

Designs system structure and makes architectural decisions defensible — boundaries, coupling, trade-offs, and recording why. Solution Architecture is an agent skill from cbrock84/headcount. Designs system structure and makes architectural decisions defensible — boundaries, coupling, trade-offs, and recording why.

When should I use Solution Architecture?

Solution Architecture fits situations like: tasks that involve Software architecture.

How do I install Solution Architecture in Claude Code?

Run `npx skills add cbrock84/headcount --skill solution-architecture -a claude-code`. Or copy the skill folder (plugins/technology/skills/solution-architecture in cbrock84/headcount) into .claude/skills/solution-architecture in your project. Claude Code loads it when a task matches its description.

How do I install Solution Architecture in Codex?

Run `npx skills add cbrock84/headcount --skill solution-architecture -a codex`. Or copy the skill folder (plugins/technology/skills/solution-architecture in cbrock84/headcount) into .agents/skills/solution-architecture in your project. Codex loads it when a task matches its description.

Can I use Solution Architecture in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add cbrock84/headcount --skill solution-architecture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/solution-architecture, .gemini/skills/solution-architecture, .github/skills/solution-architecture and .opencode/skills/solution-architecture in your project.

What does Solution Architecture need to run?

SKILL.md names no scripts, command-line tools or credentials: Solution Architecture is instructions for the agent only.

Does Solution Architecture access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Solution Architecture safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Solution Architecture use?

Solution Architecture is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Solution Architecture use?

About 804 tokens (SKILL.md is roughly 3.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 212 tokens, read only when the agent opens those files.

What are the alternatives to Solution Architecture?

Skills that share tags, products or a category with Solution Architecture: Archify Diagrams (tt-a1i/archify, 79k stars), Electron Multi-Process Architecture (iOfficeAI/AionUi, 33k stars), Backend Code Review (langgenius/dify, 158k stars) and Dark Architecture Diagram Builder (Cocoon-AI/architecture-diagram-generator, 7.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Solution Architecture?

cbrock84 (a GitHub user) maintains it in cbrock84/headcount, which has 2,007 GitHub stars. The repository holds 175 skills in this directory. The repository was last updated on September 17, 2026.

Source: cbrock84/headcount on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.