LCA wiki

A public wiki about life cycle assessment (LCA) practice with Brightway and Sentier. Plain markdown in git: readable on GitHub, cloneable by any LLM, no build step. Maintained by agents and reviewed by people. Started from the Brightcon 2026 hackathon proposal by Départ de Sentier.

flowchart TD
    entry["AGENTS.md · index.md · vocabulary.md<br/><i>schema · map · terms</i>"]
    entry --> core["core/<br/><i>domain-neutral LCA</i>"]
    entry --> sentier["sentier/<br/><i>Sentier platform</i>"]
    entry --> brightway["brightway/<br/><i>Brightway packages</i>"]
    entry --> bafu["bafu/<br/><i>BAFU LCA database</i>"]
    entry --> ecoinvent["ecoinvent/<br/><i>ecoinvent database</i>"]
    core --> coreSub["concepts/ · standards/<br/>sectors/ (GICS) · use-cases/<br/>roadmap.md"]
    sentier --> sentierSub["platform.md · commands.md<br/>modules/ (7) · roadmap.md"]
    brightway --> bwSub["packages.md · commands.md<br/>modules/ (15) · roadmap.md"]
    bafu --> bafuSub["knowledge/ · data/<br/>use-cases/ · roadmap.md"]
    ecoinvent --> ecoSub["knowledge/ · data/<br/>use-cases/ · roadmap.md"]
    sentierSub --> module["one module folder<br/>README · layout · classes · commands<br/>datasets · gotchas · status · api/ · use-cases/"]
    bwSub --> module
    entry -.-> shared["sources.md · log.md<br/>templates/ · raw/"]

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How to read it

Start at index.md: every page in one line, with a start-here block per reader. Check vocabulary.md for what a term means: one heading per term, one bullet per source and context. Then open the page you need. Every claim carries a source id that resolves in sources.md.

An LLM reads it the same way: clone, then point the agent at AGENTS.md. It is tool-neutral; CLAUDE.md is a symlink to it for Claude Code.

Who it is for

Practitioners: core/use-cases/ for the method, core/sectors/ for your sector, then a module's use-cases/ for verified commands. Contributors: CONTRIBUTING.md, then the roadmap.md of a branch. Wiki developers: AGENTS.md, then templates/ to add a page or a whole community branch.

Contributing

Keep every claim sourced and every page short. There is no lint and no CI. Before a pull request, check that your links resolve, your terms are in vocabulary.md and index.md lists every page you touched. Details in CONTRIBUTING.md.

Licence

Content: CC-BY 4.0, see LICENSE-CONTENT. Code in scripts/ and install.sh: MIT, see LICENSE. Generated api/ folders keep their package's licence. The ILCD PDF in raw/ilcd/ is reusable with attribution under Commission Decision 2011/833/EU.