solution-design

A process for clarifying an unclear product or engineering request before implementation. It turns goals, users, constraints, risks, alternatives, and acceptance criteria into an agreed design direction.

In plain words
What is it for?
It helps explore new features, architecture changes, and creative interfaces; compare possible approaches; define non-goals and evidence of success; and obtain approval before consequential work.
Why use it?
It prevents developers from building the wrong thing or making a major decision from hidden assumptions. The amount of planning is matched to the change's scope and risk.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/thiientv/godmode/solution-design
Any agent
npx skills add thiientv/godmode --skill solution-design
Clone the repo
git clone --depth 1 https://github.com/thiientv/godmode

Made for: Claude Code, Codex.

Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 554 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00075 $0.00554
Opus 5 $0.00037 $0.00277
Sonnet 5 $0.00015 $0.00111
Haiku 4.5 $0.00007 $0.00055

Measured 2d ago against content hash bdce32deccbd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

solution-design 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 2d 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.

skills/solution-design/SKILL.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Solution Design

Make the problem concrete before choosing the solution. The goal is shared understanding, not a long ceremony.

Classify the request

  • Spike: the output is a recommendation or feasibility result; keep any prototype disposable.
  • Bounded: an existing flow is understood and the change is narrow; use a short design and one approval gate.
  • Architectural: the request creates a subsystem, changes a public contract, or has several independent surfaces; write a design artifact.

When uncertain, choose the heavier path until discovery proves otherwise.

Explore in order

  1. Read repository instructions, nearby code, tests, and recent changes.
  2. Separate observed facts from assumptions and unknowns.
  3. Ask only the questions that change scope, safety, data shape, or user outcome. Ask one focused question at a time when a conversation is needed.
  4. State the outcome, users, constraints, non-goals, acceptance evidence, and principal risks.
  5. Compare two or three viable approaches when the choice is material. Explain the trade-off and recommend the smallest safe option.
  6. Present the design at the depth the request requires. Get approval before consequential implementation when the user has not already authorized it.

Use discovery-questions.md when the brief has unclear goals or competing stakeholders.

Design artifact

For architectural work, save a concise design under the repository's normal docs location. Include:

Problem and users
Outcome and non-goals
Constraints and assumptions
Options considered and recommendation
Interfaces and data affected
Failure modes and rollback
Acceptance evidence
Open decisions

Do not start implementation while a decision that materially changes the public behavior, data model, or safety boundary is unresolved.

Handoff

  • Hand an approved multi-step design to implementation-planning.
  • Hand a concrete failure to root-cause-debugging.
  • Add a domain skill only when its expertise changes the design.

Read the full file on GitHub · 74 lines

Files

What ships with it

1 file 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.

Changes

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.

  1. 2d ago First seen · 74 lines · 75 tokens per session scan A bdce32deccbd

Subscribe to this mod's changes

solution-design is a skill published in the GitHub repository thiientv/godmode (93 stars, last pushed 7d ago), licensed MIT. It adds 75 tokens to every session and 554 once invoked, about $0.0004 per session on Opus 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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