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add-density

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UpdatedMarch 28, 2026 at 16:45

Pick one high-impact ingredient from the density gap report, find a reliable density, and add it to the system. Use when adding ingredient density data.

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GregorStocks

GregorStocks/ramekin

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Software DevelopersComputer and Mathematical Occupations·SOC 15-1252

SKILL.md

readonly

name	add-density
description	Pick one high-impact ingredient from the density gap report, find a reliable density, and add it to the system. Use when adding ingredient density data.
disable-model-invocation	true

Add Density for a High-Priority Ingredient

Pick one high-impact ingredient from the density gap report, find a reliable density, and add it.

Workflow

Read the gap report (data/density-gap-report.txt) and identify the top ~20 entries
Skip ingredients that are intentionally null/ambiguous in curated.json (black pepper variants, sea salt, fine salt, etc.)
Pick one high-occurrence ingredient (or family of related variants) that can be resolved, and ask the user to confirm your choice before proceeding
Research the density:
- Best: USDA FoodData Central (fdc.nal.usda.gov) with FDC ID and URL
- Good: reputable cooking reference (King Arthur, Serious Eats) with URL
- OK: estimation with documented rationale (e.g. "comparable to X which is Y g/cup")
- Check if the ingredient is already in usda.json under a different name (just needs an alias)
Edit ingredient-density/src/data/curated.json:
- If it's a new density: add to "ingredients" with grams_per_cup, source, and url
- If it's an alias to existing data: add to "aliases"
- Add all common spelling variants you see in the gap report
Add tests in ingredient-density/src/density_lookup.rs in the appropriate test function
Update golden files: make ingredient-tests-update
Verify: make test and make lint
Regenerate gap report: make pipeline
Commit and create a PR

Key files

ingredient-density/src/data/curated.json -- hand-curated densities and aliases (overrides USDA)
ingredient-density/src/data/usda.json -- USDA FoodData Central densities (auto-imported)
ingredient-density/src/density_lookup.rs -- lookup logic, modifier stripping, tests
data/density-gap-report.txt -- ingredients missing density data, sorted by frequency

Density format

All densities are grams per US cup (236.588 ml). To convert:

From g/tbsp: multiply by 16
From g/tsp: multiply by 48

Important

Never guess. If you can't find a reliable source, mark the ingredient as null (ambiguous) rather than estimating poorly.
One ingredient family per PR.
Stop after creating the PR.

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Add Density for a High-Priority Ingredient

Pick one high-impact ingredient from the density gap report, find a reliable density, and add it.

Workflow

Read the gap report (data/density-gap-report.txt) and identify the top ~20 entries

Skip ingredients that are intentionally null/ambiguous in curated.json (black pepper variants, sea salt, fine salt, etc.)

Pick one high-occurrence ingredient (or family of related variants) that can be resolved, and ask the user to confirm your choice before proceeding

Research the density:

Best: USDA FoodData Central (fdc.nal.usda.gov) with FDC ID and URL
Good: reputable cooking reference (King Arthur, Serious Eats) with URL
OK: estimation with documented rationale (e.g. "comparable to X which is Y g/cup")
Check if the ingredient is already in usda.json under a different name (just needs an alias)

Edit ingredient-density/src/data/curated.json:

If it's a new density: add to "ingredients" with grams_per_cup, source, and url
If it's an alias to existing data: add to "aliases"
Add all common spelling variants you see in the gap report

Add tests in ingredient-density/src/density_lookup.rs in the appropriate test function

Update golden files: make ingredient-tests-update

Verify: make test and make lint

Regenerate gap report: make pipeline

Commit and create a PR

Key files

ingredient-density/src/data/curated.json -- hand-curated densities and aliases (overrides USDA)

ingredient-density/src/data/usda.json -- USDA FoodData Central densities (auto-imported)

ingredient-density/src/density_lookup.rs -- lookup logic, modifier stripping, tests

data/density-gap-report.txt -- ingredients missing density data, sorted by frequency

Density format

All densities are grams per US cup (236.588 ml). To convert:

From g/tbsp: multiply by 16

From g/tsp: multiply by 48

Important

Never guess. If you can't find a reliable source, mark the ingredient as null (ambiguous) rather than estimating poorly.

One ingredient family per PR.

Stop after creating the PR.