refactor(presets): use one editor family

.agents/notes/implemented/simplification/2026-08-10-default-presets-single-editor.i18n.yaml

@@ -0,0 +1,6 @@
+# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
+# side as of the last confirmed-consistent state. Both languages carry equal authority;
+# after editing either side, bring the other along and re-record with:
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/simplification/2026-08-10-default-presets-single-editor.md
+2026-08-10-default-presets-single-editor.md: 82f254079080aeb88d76f4e7cc2c7ab195646ec4
+2026-08-10-default-presets-single-editor.zh.md: 22bbc19feadfb71fe3a9480bc60b8777e1fb50c2

.agents/notes/implemented/simplification/2026-08-10-default-presets-single-editor.md

@@ -0,0 +1,25 @@
+# Agent Note: One editor family in general-purpose presets
+
+Status: implemented
+
+English | [中文](2026-08-10-default-presets-single-editor.zh.md)
+
+## Problem
+
+The `standard`, `code`, and `cordis` presets exposed both the `read`/`write`/`edit` filesystem tools and `str_replace_editor`. The two interfaces overlap for ordinary file inspection and editing, so every request carried an additional tool schema without adding a distinct default capability. The `minimal` preset has a different composition contract: its exact two-tool roster intentionally includes `str_replace_editor` beside persistent `bash`.
+
+## Decision
+
+The `standard`, `code`, and `cordis` preset configurations mount `dsh-tool-fs` and `dsh-tool-fs-search`, but do not mount `dsh-tool-str-replace-editor`. Code Mode therefore omits `str_replace_editor` from both its registry and generated SDK. The `minimal` preset continues to mount `dsh-tool-str-replace-editor`, and deployments or user-authored presets may still mount the plugin explicitly.
+
+This decision narrows the preset roster rather than removing the tool package or its Python runtime support. The earlier [shared-roster decision](../feature/2026-07-31-even-out-shipped-tool-rosters.md) continues to own why surface-neutral tools live in preset composition; this note owns the editor exception.
+
+## Alternatives considered
+
+**Keep both editing interfaces in the general-purpose presets.** Rejected because the overlapping model-visible schemas increase tool choice without supplying a separate default operation.
+
+**Remove `str_replace_editor` from every shipped composition.** Rejected because the `minimal` preset intentionally exposes that schema as one of its two tools, and explicit deployments remain valid consumers of the standalone plugin.
+
+## Consequences
+
+General-purpose agents use `read`, `write`, and `edit` for filesystem mutations, while the minimal agent retains `str_replace_editor`. Preset composition tests pin its absence from the standard roster, the Cordis roster, and the Code Mode SDK, while the minimal assertions continue to pin its presence.

.agents/notes/implemented/simplification/2026-08-10-default-presets-single-editor.zh.md

@@ -0,0 +1,25 @@
+# Agent Note: 通用 preset 只提供一套编辑工具
+
+Status: implemented
+
+[English](2026-08-10-default-presets-single-editor.md) | 中文
+
+## 问题
+
+`standard`、`code` 和 `cordis` preset 同时提供 `read`/`write`/`edit` 文件系统工具与 `str_replace_editor`。两套接口在常规文件查看和编辑上重叠，导致每次请求都携带额外的工具 schema，却没有增加独立的默认能力。`minimal` preset 具有不同的组合约定：它固定的双工具清单有意在持久 `bash` 之外提供 `str_replace_editor`。
+
+## 决策
+
+`standard`、`code` 和 `cordis` preset 配置挂载 `dsh-tool-fs` 与 `dsh-tool-fs-search`，但不挂载 `dsh-tool-str-replace-editor`。因此 Code Mode 的注册表和生成的 SDK 均不包含 `str_replace_editor`。`minimal` preset 继续挂载 `dsh-tool-str-replace-editor`，部署配置或用户自定义 preset 仍可显式挂载该插件。
+
+此决策收窄 preset 工具清单，不移除工具包及其 Python 运行时支持。较早的[共享清单决策](../feature/2026-07-31-even-out-shipped-tool-rosters.md)继续说明与 surface 无关的工具为何归 preset 组合所有；本记录说明编辑器例外。
+
+## 曾考虑的替代方案
+
+**在通用 preset 中保留两套编辑接口。** 不予采用，因为重叠的模型可见 schema 增加了工具选择，却没有提供不同的默认操作。
+
+**从所有交付组合中移除 `str_replace_editor`。** 不予采用，因为 `minimal` preset 有意将该 schema 作为两个工具之一，显式部署仍是该独立插件的有效消费方。
+
+## 后果
+
+通用 agent 使用 `read`、`write` 和 `edit` 完成文件系统修改，minimal agent 保留 `str_replace_editor`。preset 组合测试固定其不会出现在 standard 清单、Cordis 清单及 Code Mode SDK 中，同时 minimal 断言继续固定其存在。