deepseek-harness/docs/adr/0001-vendor-cordis-as-source.md
Tianyi Cui 066f94c7e0 docs: unwrap hard-wrapped Markdown to one line per paragraph
Hard line breaks mid-paragraph make docs harder to edit and diff — a
one-word change reflows and re-diffs the whole paragraph. Reflow all
tracked non-vendor Markdown (plus vendor/AGENTS.md) so each prose
paragraph is a single line; soft-wrapping is the editor's job. Fenced
code, tables, and list structure are preserved (wrapped list items fold
to one line per bullet). Documents the convention in AGENTS.md.
2026-06-13 20:27:04 +08:00

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# ADR 0001: Vendor Cordis as source, not npm dependencies
Status: accepted (2026-06-11)
## Context
DeepSeek Code is built on the Cordis framework. Cordis core was at 4.0.0-rc.6 (a release candidate) when this repo started; the harness depends on framework internals (fiber lifecycle, effect disposal, waterfall dispatch) whose exact behavior matters to the agent loop's correctness guarantees.
## Decision
Copy the needed Cordis packages (core, loader, include, group, timer, hmr, logger-console) and the cordiverse foundation libraries (cosmokit, schemastery) into `vendor/` as source, flattened, keeping their original npm names so workspace resolution is transparent. Truly third-party dependencies (js-yaml, chokidar, @standard-schema/spec, …) stay on npm.
`vendor/README.md` is the manifest: upstream repo + commit SHA per package and an exhaustive local-modification log. A pre-commit guard (`scripts/check-vendor-manifest.sh`) rejects vendored-source changes that don't update the manifest in the same commit.
## Consequences
- The harness fully owns its framework layer: auditable, patchable, pinned — an RC upstream can't break us, and we can fix framework bugs in-tree.
- Upstream sync is manual (documented procedure in the manifest). The modification log keeps the diff surface known.
- Vendored packages keep upstream code style; lint/strictness gates exclude them (their tsconfigs relax our newer compiler flags locally).
- One local patch exists from day one: hmr's locale-YAML imports removed (the runtime YAML import hook isn't vendored).