build-domain-map

A command that combines service or module facts into stable pages describing business domains. A business domain is a group of related product or service responsibilities.

In plain words
What is it for?
Use it to generate domain artifacts under mydocs/domains, including systems that span backend, frontend, mobile, Python, task, bridge, or callback layers.
Why use it?
It turns lower-level technical information into organized domain documentation while requiring evidence instead of invented definitions.

Command for Claude Code

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 commands/syz-coder/codebase-knowledge-wiki/build-domain-map
Clone the repo
git clone --depth 1 https://github.com/SYZ-Coder/codebase-knowledge-wiki

Made for: Claude Code.

Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 272 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 $0.00013 $0.00272
Opus 5 $0.00006 $0.00136
Sonnet 5 $0.00003 $0.00054
Haiku 4.5 $0.00001 $0.00027

Measured 2d ago against content hash db1f4f7408f1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

build-domain-map 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/commands/build-domain-map.md · 29 lines

What it actually says

Use the backend service spec skill as the primary workflow.

Read the skill source from the first available location:

  • .claude/skills/backend-service-spec-skill/SKILL.md
  • skills/backend-service-spec-skill/SKILL.md
  • ai-skill-lib/backend-service-spec-skill/SKILL.md
  • backend-service-spec-skill/SKILL.md

If the domain spans frontend, mobile, Python, task, bridge, callback, or mixed-stack layers, also read the cross-tech-stack extension from the first available location:

  • .claude/skills/cross-tech-stack-spec-skill/SKILL.md
  • skills/cross-tech-stack-spec-skill/SKILL.md
  • ai-skill-lib/cross-tech-stack-spec-skill/SKILL.md
  • cross-tech-stack-spec-skill/SKILL.md

Then execute the build_domain_map workflow for:

$ARGUMENTS

Generate domain artifacts under mydocs/domains/ unless the user gives another path. Only roll up lower-level facts; do not invent domain definitions without service, module, route, contract, or configuration evidence.

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 · 29 lines · 13 tokens per session scan A db1f4f7408f1

Subscribe to this mod's changes

build-domain-map is a command published in the GitHub repository SYZ-Coder/codebase-knowledge-wiki (9 stars, last pushed 2mo ago), licensed MIT. It adds 13 tokens to every session and 272 once invoked, about $0.0001 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 2026-08-31.