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domain-modeling · rohitg00 | DecimalAI

documentationby rohitg00

domain-modeling

rohitg00/domain-modeling

Source rohitg00/pro-workflow ↗License Not recorded

Build the project's shared language and bounded contexts before writing code, so names stay consistent and the agent stops paraphrasing domain concepts. Produces a CONTEXT.md glossary and decision records. Use at the start of a project or feature, or when the codebase and the people describing it speak different languages.

SkillScore83Maintained

Automatic

Coding pack

Last verified 8/13/2026

What it changes

Passed 17 of 21 test cases with the skill, and 14 of 21 without it.

Without skill65%

With skill83%

Checks it passed that the model alone missed

Identifies `CONTEXT.md` as the shared file.
Limits each glossary entry definition to one line.
Specifies `docs/decisions/` as the storage directory.

and 2 more in the full report

5 fixed14 passed either way3 still failing1 broke

Pass-rate lift: +17 pp
Tokens: -1%
Agent turns: 0%
Response time: -37%

Model gemini-3.6-flashMeasured 8/13/2026v119 of 23 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/rohitg00-domain-modeling/SKILL.md https://app.decimal.ai/s/rohitg00-domain-modeling/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add rohitg00-domain-modeling, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/rohitg00-domain-modeling/ and pins it in .decimal/skills.lock

decimalai skills add rohitg00-domain-modeling

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/rohitg00-domain-modeling/SKILL.md https://app.decimal.ai/s/rohitg00-domain-modeling/SKILL.md

Raw file: /s/rohitg00-domain-modeling/SKILL.md ↗ · machine-readable summary at /s/rohitg00-domain-modeling.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 5

Prompt

We need to log a contested decision about whether 'account' should be split into 'BillingAccount' and 'UserIdentity'. Existing files in `docs/decisions/` are `0001-auth.md` and `0002-database.md`. What filename should be used for the new decision record?

What was checked, without and with the skill
Checked	Without skill	With skill
Names the file with prefix `0003` inside `docs/decisions/`.	Missed	Passed

case-07 · gemini-3.6-flash · 8/13/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md54 linessingle file

domain-modeling

Most misbuilds start as a language gap: the agent is dropped into a project and left to infer the jargon, so it uses twenty words where the domain has one. A shared language closes the gap. When code, conversation, and the model all draw from the same vocabulary, names line up, navigation gets cheaper, and the model spends fewer tokens reasoning because it has a tighter language to reason in.

Method

Harvest the terms. From the request, the codebase, and the user's own words, list the nouns and verbs that carry domain meaning - the concepts a newcomer would have to ask about. Prefer the user's word over a synonym you like better.
Pin each one. Write a one-line definition in the project's own language, not a dictionary definition. If two terms blur together, force the distinction or collapse them - ambiguity here becomes inconsistent names in code.
Draw the boundaries. Where the same word means different things in different parts of the system, that is a boundary. Name each context and note which terms belong to it. A term that means two things is two terms.
Record the hard calls. When a modeling choice was contested or will be questioned later, write a short decision record: context, choice, alternatives rejected, why.

Outputs

CONTEXT.md - the shared-language glossary. One term per line: term - what it means in this project. Grouped by bounded context when there is more than one. Point every future session at this file. On re-run, add new terms and update definitions that changed; do not rewrite the file wholesale.
Bounded-context sketch - the contexts and which terms live in each, short enough to read in fifteen seconds.
Decision records in docs/decisions/NNNN-slug.md for the contested modeling calls only. Read the directory first and number from the highest existing record so two records never collide. Skip the obvious ones.

Guardrails

Track record

Benchmark

17 / 21

test cases passed, vs 14 / 21 without

Adoption

Users: 3
Times used: 32

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

rohitg00 / pro-workflow

skills/domain-modeling/SKILL.md

View on GitHub ↗

Imported 8/3/2026Version v1

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See it in action

What's inside

domain-modeling

Method

Outputs

Guardrails

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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