Ubiquitous Language: Project Thesaurus Manager Agent Skill

Maintain a project thesaurus (domain glossary) following DDD ubiquitous language principles.

Context cost
28.4k tokensestimated from the bundle, loaded when it triggers
Bundle
6 files · 171.7 kB1 script among them — read before you run
Licence
MITthe author’s own terms
Last change
—v2.1.0
Servers it uses
Noneruns standalone

What it does

Maintain a project thesaurus (domain glossary) following DDD ubiquitous language principles. Use PROACTIVELY when naming anything: variables, functions, classes, modules, database fields, API endpoints, events, files, or directories. Also use when the user asks to "create thesaurus", "update glossary", "add term", "rename to match domain", "check naming consistency", "what should I call this", "domain language", "ubiquitous language", or "naming conventions". Ensures all names in the codebase are consistent, descriptive, and aligned with the shared domain vocabulary.

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

developer tools

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md29.8 kB · preview
--- name: ubiquitous-language metadata: version: "2.1.0" thesaurus-format: "2.0" allowed-tools: - Read - Write - Edit - Grep - Glob - Bash - Agent - AskUserQuestion ---
28# Ubiquitous Language: Project Thesaurus Manager
29
30You enforce naming consistency across the codebase by maintaining a living thesaurus
31of domain terms and consulting it every time something needs a name.
32
33**Four modes:**
34- **Naming consultation** (frequent) — everything in this file
35- **Thesaurus generation** (rare) — read [references/generating-thesaurus.md](references/generating-thesaurus.md)
36- **Naming audit** (periodic) — read [references/naming-audit.md](references/naming-audit.md)
37- **History mining** (optional) — read [references/git-history-mining.md](references/git-history-mining.md)
38 when ## Unresolved items need evidence: which name came first, which replaced which,
39 which is dying. Offered after generation, or on demand against an existing thesaurus.
40
41## Foundations
42
43This skill combines two bodies of knowledge:
44
45- **Domain-Driven Design (DDD)** by Eric Evans — ubiquitous language, bounded contexts, aggregate naming
46- **[First Principles Framework (FPF)](https://github.com/ailev/FPF/blob/main/FPF-Spec.md)** — a transdisciplinary "operating system for thought" that provides formal tools for semantic precision: bounded contexts as declared semantic frames, polysemy unpacking, lexical firewalls, cross-context bridges with loss notes, term continuity relations, and anti-explosion naming control. References like "FPF F.5" or "FPF A.1.1" point to specific sections of the FPF specification.
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md4,494 words
Files6
LicenceMIT
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈250
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
28,125
on trigger
The instruction body and 5 supporting files, read only when the skill fires.
14.2%
of a 200k window
Ten skills this size would not fit in the window together.
050k100k150k200k context window

28.4k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

It asks the agent to write files, using whatever file access your client already has. Whether it reaches the network is not declared.

What it asks for
Writes filesyes
Network accessnot declared

Read from the allowed-tools line of this skill’s own SKILL.md. It also asks for Bash, which could do either, so what is not named there is not ruled out. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

6 files, 171.7 kB on disk. Mostly text — the instructions the model reads — with 1 script in it that your client would run only if the instructions tell it to.

  • SKILL.md29.8 kB
  • README.md20.7 kB
  • references/generating-thesaurus.md26.0 kB
  • references/git-history-mining.md25.5 kB
  • references/naming-audit.md11.5 kB
  • scripts/git_term_index.py58.2 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 1 script beside the text, so the bundle is 6 files you can review in full before installing. The MIT licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Ubiquitous Language: Project Thesaurus Manager · 28.4k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/ubiquitous-language-project-thesaurus-manager/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/ubiquitous-language-project-thesaurus-manager" ] && { [ ! -e .claude/skills/ubiquitous-language-project-thesaurus-manager ] || { mv .claude/skills/ubiquitous-language-project-thesaurus-manager "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/ubiquitous-language-project-thesaurus-manager" .claude/skills/ && echo "Installed .claude/skills/ubiquitous-language-project-thesaurus-manager"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add codealive-ai/ubiquitous-language-project-thesaurus-manager

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/ubiquitous-language-project-thesaurus-manager/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/ubiquitous-language-project-thesaurus-manager/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/ubiquitous-language-project-thesaurus-manager" ] && { [ ! -e ~/.claude/skills/ubiquitous-language-project-thesaurus-manager ] || { mv ~/.claude/skills/ubiquitous-language-project-thesaurus-manager "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/ubiquitous-language-project-thesaurus-manager" ~/.claude/skills/ && echo "Installed ~/.claude/skills/ubiquitous-language-project-thesaurus-manager" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/ubiquitous-language-project-thesaurus-manager/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as ubiquitous-language in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, ubiquitous-language-project-thesaurus-manager.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Version2.1.0
Publishedno release date on file
PriceFree
Referencecodealive-ai/ubiquitous-language-project-thesaurus-manager

Versions

v2.1.0 is what is on the shelf; no release here carries a date. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

v2.1.0
  • No earlier releases have been published to the marketplace.
Pinning

The install command always fetches the release that is current the day you run it — v2.1.0 today — and cannot ask for an earlier one. The copy on your disk does not change until you run it again.

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