domain

A set of instructions for finding and using domain documentation in a software project. Domain documentation explains the project's terminology, structure, rules, and important design decisions.

In plain words
What is it for?
Use it when investigating this repository, especially before changing areas covered by its context file or architecture decision records.
Why use it?
It helps an agent learn the project's intended vocabulary and constraints before exploring unfamiliar code. If the documents are missing, it allows work to continue.

Agent

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 agents/enihcam/opencode-webmcp/domain
Clone the repo
git clone --depth 1 https://github.com/enihcam/opencode-webmcp
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 389 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 $0.00000 $0.00389
Opus 5 $0.00000 $0.00195
Sonnet 5 $0.00000 $0.00078
Haiku 4.5 $0.00000 $0.00039

Measured yesterday against content hash 8645e71547bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

domain 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 yesterday.

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.

docs/agents/domain.md · 46 lines

What it actually says

Domain Docs

How engineering skills should consume this repo's domain documentation when exploring the codebase.

Before exploring, read these

  • CONTEXT.md at the repo root — describes the project, domain terminology, architecture at a glance, key invariants, and dependency/toolchain info.
  • docs/adr/ — read ADRs that touch the area you're about to work in.

If any of these files don't exist, proceed silently. Don't flag their absence; don't suggest creating them upfront. The producer skill (/grill-with-docs) creates them lazily when terms or decisions actually get resolved.

File structure

Single-context repo:

/
├── CONTEXT.md
├── docs/adr/
│   ├── 0001-mcp-bridge-architecture.md
├── docs/agents/
│   ├── AGENT-BRIEF.md
│   ├── domain.md
│   ├── issue-tracker.md
│   └── triage-labels.md
├── lib/
│   └── config.mjs
├── server.js
└── test/
    └── unit.mjs

No CONTEXT-MAP.md — this is a single-module project.

Use the glossary's vocabulary

When your output names a domain concept, use the term as defined in CONTEXT.md. Don't drift to synonyms the glossary explicitly avoids.

Key terms: MCP, WebMCP, bridge-native tool, page-discovered tool, declarative tool, imperative tool, monkey-patch, dispatch table, tab, ring buffer.

Flag ADR conflicts

If your output contradicts an existing ADR, surface it explicitly rather than silently overriding:

Contradicts ADR-0001 (section 6 — tab management auto-recovery) — but worth reopening because…

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. yesterday First seen · 46 lines · 0 tokens per session scan A 8645e71547bb

Subscribe to this mod's changes

domain is an agent published in the GitHub repository enihcam/opencode-webmcp (1 stars, last pushed 8d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 389 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 2026-08-31.