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Tianyi Cui 370b5d3aab Add assertNever with closed-vs-extensible exhaustiveness guidance

assertNever (dsh-llm) marks unreachable defaults on CLOSED unions:
adding a StreamChunk variant now breaks compilation at
BlockAssembler.push, and a value escaping its type at runtime throws
with diagnostics. The module doc and a new AGENTS.md convention spell
out the dividing line: merge-extensible unions (SessionEventMap,
ContentBlockMap, …) must NOT use assertNever — plugin-added variants
are valid unknown values there; handle known cases and fall through
with a comment.

2026-06-11 15:21:25 +08:00

.github/workflows

Add CI workflow: full gate matrix on node 24 and 26

2026-06-11 15:08:53 +08:00

docs

Sync docs with the defineTool DSL and actual demo code

2026-06-11 13:48:22 +08:00

examples

Add branded ID types: CallId, SessionId, AgentId

2026-06-11 15:17:56 +08:00

packages

Add assertNever with closed-vs-extensible exhaustiveness guidance

2026-06-11 15:21:25 +08:00

scripts

Add lefthook git hooks with a vendor-manifest guard

2026-06-11 15:07:55 +08:00

vendor

Enable maximum-strict TypeScript across our packages

2026-06-11 14:02:47 +08:00

.gitignore

Enforce 100% per-file test coverage on packages/*/src

2026-06-11 14:58:36 +08:00

.yarnrc.yml

Set up monorepo infra: Yarn 4 workspaces, tsc -b + dumble build, vitest

2026-06-11 10:52:45 +08:00

AGENTS.md

Add assertNever with closed-vs-extensible exhaustiveness guidance

2026-06-11 15:21:25 +08:00

CLAUDE.md

Initialize repo with README, AGENTS.md, and CLAUDE.md symlink

2026-06-10 22:58:56 +08:00

eslint.config.mjs

Add ESLint: typescript-eslint strict-type-checked + stylistic formatting

2026-06-11 14:17:58 +08:00

knip.json

Add repo hygiene gates: knip, publint, yarn constraints

2026-06-11 15:04:50 +08:00

lefthook.yml

Add lefthook git hooks with a vendor-manifest guard

2026-06-11 15:07:55 +08:00

LICENSE

Initialize repo with README, AGENTS.md, and CLAUDE.md symlink

2026-06-10 22:58:56 +08:00

package.json

Add lefthook git hooks with a vendor-manifest guard

2026-06-11 15:07:55 +08:00

README.md

Document the codebase thoroughly and tighten type safety

2026-06-11 13:01:00 +08:00

tsconfig.base.json

Enable maximum-strict TypeScript across our packages

2026-06-11 14:02:47 +08:00

tsconfig.build.json

Set up monorepo infra: Yarn 4 workspaces, tsc -b + dumble build, vitest

2026-06-11 10:52:45 +08:00

tsconfig.json

Set up monorepo infra: Yarn 4 workspaces, tsc -b + dumble build, vitest

2026-06-11 10:52:45 +08:00

tsconfig.test.json

Set up monorepo infra: Yarn 4 workspaces, tsc -b + dumble build, vitest

2026-06-11 10:52:45 +08:00

tsconfig.typecheck.json

Fix schema-DSL findings from the second Codex review

2026-06-11 13:46:01 +08:00

vitest.config.ts

Enforce 100% per-file test coverage on packages/*/src

2026-06-11 14:58:36 +08:00

yarn.config.cjs

Add repo hygiene gates: knip, publint, yarn constraints

2026-06-11 15:04:50 +08:00

yarn.lock

Add lefthook git hooks with a vendor-manifest guard

2026-06-11 15:07:55 +08:00

README.md

DeepSeek Harness

Monorepo for the DeepSeek Harness group.

Projects

DeepSeek Code — DeepSeek's coding agent product.

Development

This monorepo is built on the Cordis framework (vendored as source under vendor/), microkernel-style: everything is a plugin.

yarn install
yarn test        # vitest
yarn demo        # runnable echo-agent example

For agent instructions see AGENTS.md. For the architecture design see docs/architecture.md. Each subdirectory has its own README.md with local context: packages/, vendor/.