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docs(agent-notes): consolidate superseded decisions

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2026-07-25 16:43:07 +08:00
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.agents/notes/implemented/simplification/2026-07-20-remove-stdio-and-echo-agents.md
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@@ -18,8 +18,8 @@ The stdio and Echo agents are removed without compatibility packages, modes, com
The remaining application roles are explicit:
- [`@deepseek-ai/dsh-tui-demo`](../../../../packages/examples/tui-demo/README.md) owns terminal-interactive execution. `examples/tui-agent` owns the complete coding composition, Code Mode overlay, PTY coverage, and terminal snapshots.
- [`@deepseek-ai/dsh-cli-demo`](../../../../packages/examples/cli-demo/README.md) owns non-interactive execution. `examples/headless-agent` owns the real-model one-shot composition, replay snapshots, generic real-agent suites, and test-only keyless Loader fixtures.
- [`@deepseek-ai/dsh-tui-demo`](../../../../packages/examples/tui-demo/README.md) owns terminal-interactive execution. It rejects non-TTY streams before Loader boot; `examples/tui-agent` owns the complete coding composition, Code Mode overlay, PTY coverage, and terminal snapshots.
- [`@deepseek-ai/dsh-cli-demo`](../../../../packages/examples/cli-demo/README.md) owns non-interactive execution, including pipes. `examples/headless-agent` owns the real-model one-shot composition, replay snapshots, generic real-agent suites, and test-only keyless Loader fixtures.
- [`@deepseek-ai/dsh-acp-demo`](../../../../packages/examples/acp-demo/README.md) and `@deepseek-ai/dsh-jsonrpc` own their framed protocol integrations.
The SDK project model and create/config workflows replace the `stdio` run-interface option with `tui`; generated TUI projects compose `@deepseek-ai/dsh-tui` and create or resume one exact session. Repository-facing demo documentation requires a DeepSeek API key and leads with the real Headless or TUI agents.
@@ -28,11 +28,14 @@ Keyless validation is test-owned. The Headless Loader smoke uses a fixture adapt
## Verification
TUI and Headless Loader coverage run the real app packages in source and built modes. TUI uses a pseudo-terminal; Headless proves its task/result and tool-call contracts. Generated graphs and repository searches reject stale package, command, leaf, and SDK-interface references.
TUI and Headless Loader coverage run the real app packages in source and built modes. PTY-driven subprocess coverage is reserved for the TUI lifecycle; other entry-point smokes use the one-shot pipe protocol. Headless proves its task/result and tool-call contracts. Generated graphs and repository searches reject stale package, command, leaf, SDK-interface, `createStdioChat`, and `StdioRuntime` references.
The TUI PTY smoke includes the Code Mode overlay composition, while `examples/cordis-agent/tests/keyless-smoke.e2e.ts` provides a minimal PTY boot over the real Cordis-agent Loader tree. The built TUI bin rejects piped launch before Loader boot and points at `dsh-cli-demo`; the CLI built-bin suite runs text, JSON, and structurally parsed `stream-json` output under plain Node, persists fresh sessions, and rejects invalid arguments and missing config without contaminating stdout. Time-context integration uses the real Headless composition for two ordered turns, while its package tests own finer elapsed-time behavior.
## Alternatives considered
- **Keep the line agent only for pipes** — rejected because Headless has a bounded task contract, format-pure stdout, durable completion, and process exit status.
- **Keep, fold, or promote the readline helper as a package** — rejected because it had one app consumer and no independently swappable contract. Folding it into the stdio app removed an unjustified support-package boundary but still retained the redundant product; a future standalone line UI needs a real second consumer before reintroducing that package.
- **Keep Echo as the keyless quick start** — rejected because the first product experience should exercise the real model and supported coding agent, not a scripted adapter with a bespoke tool.
- **Keep Echo only as a CI demo command** — rejected because test-owned Headless fixtures cover the same Loader and built-artifact boundaries without preserving a mock product leaf.
- **Remove every stdio or mock mechanism** — rejected because framed protocols, process I/O, and deterministic test adapters are independent infrastructure, not the removed agents.
@@ -43,3 +46,4 @@ TUI and Headless Loader coverage run the real app packages in source and built m
- The repository has no keyless user-facing agent demo; local agent demos require `DEEPSEEK_API_KEY`.
- CI retains keyless real-entry coverage through test fixtures rather than a product command.
- Existing stdio-agent configurations, Echo commands, and SDK `--interface=stdio` invocations fail instead of being translated.
- Piped multi-turn interaction in one process and the readline provider for non-TTY `ask_user_question` are intentionally gone; resume covers durable multi-turn work, and a non-TTY composition must supply its own interaction provider.