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Providers stream token-sized deltas, so a session log stores hundreds of near-identical assistant/chunk lines whose JSON envelopes dwarf their payloads (~56x measured on a real DeepSeek session, 73% of file bytes). Add a lossless storage codec to dsh-session: packChunkRuns() folds each run of >=3 consecutive same-block delta chunks into one storage row -- text-chunks / reasoning-chunks / tool-call-chunks, bare slash-less tags like the header line's 'session' so rows cannot be confused with session events -- and decodeStorageRecord() expands rows back to the exact original events (seq0/time0 + dt gap array reconstruct every member's seq/time; tool-call rows carry the run-constant id/name). The encoder whitelists exact shapes and stores anything unrecognized verbatim; the decoder validates row-tagged values and fails loud on malformation. The JSONL backend gains a packChunks config (default false). Writing packs only when enabled -- default-off output stays byte-identical to the previous layout, so snapshot goldens are untouched. Reading is layout-blind: scanLog always decodes rows and now checks seq contiguity with a cursor instead of the line index, so packed, unpacked, and mixed files all load identically. Fixture readers (llm-replay parseSessionLog, acp-snapshot normalizeSessionLog) share the codec; the normalizer zeroes a row's time0/dt exactly like an event's time. The two demo bundles plumb packChunks from cordis.yml to the backend. Measured on a real coding session: 105 KB -> 42 KB (-60%), 475 lines -> 74, with reasoning/tool-call heavy sessions saving the most. Covered by example + fast-check round-trip codec tests, backend packed/mixed/torn- tail specs, and an end-to-end demo run loading a packed log through a default-config backend. |
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| .agents/skills | ||
| .claude | ||
| .github/workflows | ||
| docs | ||
| examples | ||
| packages | ||
| python | ||
| scripts | ||
| vendor | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .jscpd.json | ||
| AGENTS.md | ||
| CLAUDE.md | ||
| eslint.config.mjs | ||
| knip.json | ||
| lefthook.yml | ||
| LICENSE | ||
| package.json | ||
| pnpm-lock.yaml | ||
| pnpm-workspace.yaml | ||
| pytest.ini | ||
| README.i18n.yaml | ||
| README.md | ||
| README.zh.md | ||
| tsconfig.base.json | ||
| tsconfig.build.json | ||
| tsconfig.json | ||
| tsdown.config.ts | ||
| vitest.config.ts | ||
| vitest.e2e.config.ts | ||
| vitest.snapshot.config.ts | ||
DeepSeek Harness
English | 中文
The DeepSeek Harness SDK is a plugin-based SDK for building agent harnesses.
Development
This monorepo is built on the Cordis framework (vendored as source under vendor/), microkernel-style: everything is a plugin.
pnpm install
pnpm run test # vitest
pnpm run demo:repl # REPL agent demo (needs DEEPSEEK_API_KEY)
pnpm run demo:acp # ACP server agent demo (needs DEEPSEEK_API_KEY)
For humans, start with the development guide for local setup, hooks, environment variables, and quality gates, then read the architecture design and documentation graph index before package work. Local context lives in packages/ and vendor/.
For agents, follow AGENTS.md.