9cc8dc371e
Reconciles the session-surface work (surfaceOp/sourceEventSeqs provenance as the sole derivation path) with master's worktree-subagent series (fork-seed boundary + out-of-process subagent backends). Semantic reconciliations beyond the textual auto-merge: - SQLite SCHEMA_VERSION: both sides bumped 2->3. Merged to a single v3 carrying BOTH column families — master's seed_length on `sessions` and surface's source_event_seqs/surface_op on `events`. writeRow + both INSERT sites bind the full set; the schema doc lists all three added columns as the v2->v3 gap. - agent-loop runStep request: master's `sessionId: session.id` and surface's per-append surfaceOp/sourceEventSeqs coexist (different regions). - Fork seed + surface: a fork seeds the child from the parent's LIVE events, which now carry surfaceOp, so the child's surface rebuilds correctly. Verified end-to-end — the subagent-fork replay recalls the inherited "SAFFRON" codeword through the seeded prefix. - Subagent snapshot fixtures (recorded pre-surface) re-enriched via KEYLESS deterministic replay: only surfaceOp/sourceEventSeqs added onto existing recorded lines (matched by seq), no recorded value changed. Not re-recorded against the live API. Gates: typecheck, test (1112), test:snapshot (14), doc-sync, lint, build, hygiene all green.
Examples
Runnable demos (not workspaces) that showcase how the harness is wired. Each example is now a thin leaf: a cordis.yml that picks the swappable backends (an LLM adapter, a bash executor) and loads ONE app package, plus any demo-only mocks. The composition — the spine, the front-door cluster, and the boot glue — lives in the app packages (@deepseek-ai/dsh-stdio-agent, @deepseek-ai/dsh-acp-agent) and the @deepseek-ai/dsh-agent-core bundle they share. There is no start.ts; the demo:* scripts invoke each app package's bin.
echo-agent
A mock model + echo tool on the stdio chat app — the all-mock skeleton. The leaf swaps dsh-stdio-agent's LLM backend to a local mock-echo adapter and adds a local echo tool. Demonstrates:
- A thin leaf
cordis.ymlloading the@deepseek-ai/dsh-stdio-agentapp - Registering a mock
LlmAdapter(streaming scripted responses) - Registering a tool via
ctx.tools.register() - "Swap the backend, keep the app" — the only difference from
coding-agentis the adapter
Run with: pnpm run demo:echo. When prompted, type "echo " to trigger a tool call round-trip.
coding-agent
The real thing: DeepSeek V4 + the bash tool suite on the same @deepseek-ai/dsh-stdio-agent app. Where echo-agent proves the skeleton with mocks, this is a usable coding assistant.
Run with: pnpm run demo:coding (needs DEEPSEEK_API_KEY in the environment or a gitignored repo-root .env). See coding-agent/README.md for details.
acp-agent
The same coding agent exposed as an Agent Client Protocol (ACP) server over JSON-RPC stdio, via the @deepseek-ai/dsh-acp-agent app — drive it from Zed or any other ACP client. Also the home of the keyless snapshot tests.
Run with: pnpm run demo:acp (needs DEEPSEEK_API_KEY). See acp-agent/README.md for the Zed setup and the snapshot-test design.