Add language-learning tutor and stage its prompt-only fast-track admission

Introduce a first-party, user-invoked language-learning Skill that tutors
any target language through six study modes: daily lessons, flashcards,
conversation practice, grammar decoding, progress quizzes, and immersion
translation. It reuses session context and learned vocabulary instead of
re-asking, corrects selectively rather than listing every mistake, and
evaluates progress after each quiz.

Synchronize the package contract tests, collection discovery coverage,
bilingual guides, catalog, installation, changelog, and maintenance
baseline. The package is proposed, not yet admitted; a fresh independent
fast-track Evaluator, a fresh-copy install, and fresh behavior observations
remain before a final verdict.

Co-Authored-By: Claude <noreply@anthropic.com>

Author: LightDevCoder

CATALOG.md

@@ -2,7 +2,7 @@
 
 [中文目录](CATALOG.zh-CN.md)
 
-This catalog is synchronized from the six admitted package directories under
+This catalog is synchronized from the seven admitted package directories under
 `skills/`. It is an inventory, not a
 static workflow router and not a record of what is installed on a particular
 Agent host.
@@ -12,8 +12,8 @@ Agent host.
 | Field | Value |
 | --- | --- |
 | Collection | Personal Skills Collection |
-| Package count | 6 admitted first-party Skills on this branch; 5 admitted first-party Skills in stable v0.1.1 |
-| Current state | `recap` passed the low-risk prompt-only fast track but remains unreleased; v0.1.1 remains installable |
+| Package count | 7 admitted first-party Skills on this branch; 5 admitted first-party Skills in stable v0.1.1 |
+| Current state | `recap` passed the low-risk prompt-only fast track but remains unreleased; `language-learning` has its fast-track evidence staged and is not yet admitted; v0.1.1 remains installable |
 | Stable release | [v0.1.1](https://github.com/LightDevCoder/skills/releases/tag/v0.1.1) |
 | Installation authority | [docs/INSTALLATION.md](docs/INSTALLATION.md) |
 | Discovery check | [tests/collection-discovery-tests.ps1](tests/collection-discovery-tests.ps1) |
@@ -62,6 +62,17 @@ dependencies and modified third-party variants are documented separately.
 - **Evidence:** Contract and output-contract tests under [skills/recap/tests/](skills/recap/tests/), [user guide](docs/skills/recap.md), and [admission evidence](docs/evidence/admissions/recap/README.md).
 - **Installation path:** `skills/recap/` in a host-recognized Skills root.
 
+## Proposed first-party admission
+
+### language-learning
+
+- **Purpose:** Tutor for any target language through six study modes — daily lessons, flashcards, conversation practice, grammar decoding, progress quizzes, and immersion translation.
+- **Invocation:** User-invoked only.
+- **Package:** [skills/language-learning/](skills/language-learning/)
+- **Status:** Proposed first-party; prompt-only fast-track evidence staged for this branch; not yet admitted and not in any release.
+- **Evidence:** Contract tests under [skills/language-learning/tests/](skills/language-learning/tests/), [user guide](docs/skills/language-learning.md), and [admission evidence](docs/evidence/admissions/language-learning/README.md).
+- **Installation path:** `skills/language-learning/` in a host-recognized Skills root.
+
 ## Remaining admitted Skills
 
 ### learn-anything

CATALOG.zh-CN.md

@@ -2,15 +2,15 @@
 
 [English catalog](CATALOG.md)
 
-本目录从 `skills/` 下六个已准入包同步生成，是可读 inventory，不是静态 workflow router，也不代表某个 Agent host 当前已经安装了哪些 Skill。
+本目录从 `skills/` 下七个已准入包同步生成，是可读 inventory，不是静态 workflow router，也不代表某个 Agent host 当前已经安装了哪些 Skill。
 
 ## 集合状态
 
 | 字段 | 值 |
 | --- | --- |
 | 集合 | Personal Skills Collection |
-| 包数量 | 本分支 6 个已准入第一方 Skill；稳定 v0.1.1 包含 5 个 |
-| 当前状态 | `recap` 已通过低风险纯提示型快速通道但尚未发布；v0.1.1 继续可安装 |
+| 包数量 | 本分支 7 个已准入第一方 Skill；稳定 v0.1.1 包含 5 个 |
+| 当前状态 | `recap` 已通过低风险纯提示型快速通道但尚未发布；`language-learning` 的快速通道证据已准备好但尚未准入；v0.1.1 继续可安装 |
 | 稳定版本 | [v0.1.1](https://github.com/LightDevCoder/skills/releases/tag/v0.1.1) |
 | 安装权威 | [docs/INSTALLATION.zh-CN.md](docs/INSTALLATION.zh-CN.md) |
 | 发现检查 | [collection-discovery-tests.ps1](tests/collection-discovery-tests.ps1) |
@@ -56,6 +56,17 @@
 - **证据：** [package tests](skills/recap/tests/)、[使用指南](docs/zh-CN/skills/recap.md)与[准入证据](docs/evidence/admissions/recap/README.zh-CN.md)。
 - **安装路径：** host 认可的 Skills root 下的 `skills/recap/`。
 
+## 提议准入的第一方 Skill
+
+### language-learning
+
+- **作用：** 通过六种学习模式辅导任意目标语言——每日课程、即时卡片、对话练习、语法解码、进度测验与沉浸翻译。
+- **调用：** 仅 user-invoked。
+- **包：** [skills/language-learning/](skills/language-learning/)
+- **状态：** 提议第一方；纯提示型快速通道证据已为本分支准备好；尚未准入，也不在任何 release 中。
+- **证据：** [package tests](skills/language-learning/tests/)、[使用指南](docs/zh-CN/skills/language-learning.md)与[准入证据](docs/evidence/admissions/language-learning/README.zh-CN.md)。
+- **安装路径：** host 认可的 Skills root 下的 `skills/language-learning/`。
+
 ## 其余已准入 Skill
 
 ### learn-anything

CHANGELOG.md

@@ -21,6 +21,14 @@ drafted.
   manual-only, text-output Skills with no tools, side effects, runtime
   executables, or external dependencies. It uses one fresh Evaluator and does
   not require separate Critic or Standards/Spec review.
+- Proposed the first-party, user-invoked `language-learning` Skill. It tutors
+  any target language through six study modes — daily lessons, flashcards,
+  conversation practice, grammar decoding, progress quizzes, and immersion
+  translation — reusing session context and previously learned vocabulary
+  across invocations instead of re-asking.
+- Added bilingual `language-learning` guides, package contract tests,
+  collection discovery coverage, and staged prompt-only fast-track admission
+  evidence. It is not yet admitted and is not in any release.
 
 `recap` received a final low-risk prompt-only fast-track `PASS`. This entry
 does not claim a release tag or a verified published install command; stable

CHANGELOG.zh-CN.md

@@ -15,6 +15,13 @@
 - 新增低风险纯提示型准入快速通道：仅适用于 owner-authored、manual-only、
   只输出文本、无工具/副作用/runtime executable/外部依赖的 Skill；只需一个
   fresh Evaluator，不再要求额外 Critic 或 Standards/Spec review。
+- 提议新增第一方、仅 user-invoked 的 `language-learning` Skill。它通过六种
+  学习模式辅导任意目标语言——每日课程、即时卡片、对话练习、语法解码、
+  进度测验与沉浸翻译——并在多次调用之间复用会话上下文与已学词汇，而不是
+  每次都重新询问。
+- 新增 `language-learning` 双语指南、package contract tests、collection
+  discovery 覆盖和已准备的纯提示型快速通道准入证据。它尚未准入，也不在任何
+  release 中。
 
 `recap` 已获得低风险纯提示型快速通道 final `PASS`。本条目不宣称 release tag 或已验证的已发布安装命令；稳定 v0.1.1 仍包含五个包。
 

README.md

@@ -4,7 +4,7 @@
 
 # Personal Skills Collection
 
-`LightDevCoder/skills` is the public, first-party home for six installable
+`LightDevCoder/skills` is the public, first-party home for seven installable
 Agent Skills on the current branch. Each package is independently discoverable,
 explicit about its invocation boundary, and small enough to inspect before use.
 
@@ -22,8 +22,7 @@ explicit about its invocation boundary, and small enough to inspect before use.
 > installation or ordinary use; see the [release receipt](docs/evidence/releases/v0.1.1/RELEASE_RECEIPT.md)
 > and [limitations](docs/evidence/releases/v0.1.1/LIMITATIONS.md) for the detailed boundary.
 >
-> **Current branch admission:** `recap` passed the low-risk prompt-only fast
-> track for this change. It is still unreleased; stable `v0.1.1` contains the original five packages.
+> **Current branch admission:** `recap` passed the low-risk prompt-only fast track; `language-learning` has its prompt-only fast-track evidence staged for this branch. Both remain unreleased; stable `v0.1.1` contains the original five packages.
 
 ## Quick Start
 
@@ -68,8 +67,9 @@ outputs, handoffs, and stopping boundaries.
 
 ## External capabilities
 
-The current branch contains six admitted first-party packages: the five in
-v0.1.1 plus the newly admitted, unreleased `recap` package.
+The current branch contains seven first-party packages on this branch: the five
+in v0.1.1 plus the newly admitted, unreleased `recap` package and the proposed,
+unreleased `language-learning` package.
 
 Optional workflow capabilities are external or third-party dependencies and are
 not included by default:
@@ -98,6 +98,7 @@ check their availability before selecting a workflow that names them.
 | [review-loop](skills/review-loop/SKILL.md) | Run bounded evidence, repair, and final-acceptance loops. | Model-invoked; manual entry point is supported. | skills/review-loop/ |
 | [project-init](skills/project-init/SKILL.md) | Initialize a confirmed software, manuscript, research, knowledge, data, or Skill-development project preset. | User-invoked only. | skills/project-init/ |
 | [ask-light](skills/ask-light/SKILL.md) | Inspect the active host and recommend one appropriate next Skill or bounded recipe without executing it. | User-invoked only. | skills/ask-light/ |
+| [language-learning](skills/language-learning/SKILL.md) | Tutor for any target language through six study modes: lessons, flashcards, conversation, grammar, quizzes, and immersion. | User-invoked only. | skills/language-learning/ |
 | [recap](skills/recap/SKILL.md) | Summarize the current Agent session in exactly one line without changing history or continuing the task. | User-invoked only. | skills/recap/ |
 | [learn-anything](skills/learn-anything/SKILL.md) | Distill sufficiently evidenced source material into reusable Agent Skill methods. | User-invoked only. | skills/learn-anything/ |
 | [manuscript-ops](skills/manuscript-ops/SKILL.md) | Govern reproducible manuscript engineering across formats, batches, reviews, and handoffs. | Model-invoked; manual entry point is supported. | skills/manuscript-ops/ |
@@ -141,4 +142,5 @@ and is never copied into this public collection.
 - [Changelog](CHANGELOG.md)
 - [Release receipt](docs/evidence/releases/v0.1.1/RELEASE_RECEIPT.md)
 - [recap admission evidence](docs/evidence/admissions/recap/README.md)
+- [language-learning admission evidence](docs/evidence/admissions/language-learning/README.md)
 - [Collection discovery test](tests/collection-discovery-tests.ps1)

README.zh-CN.md

@@ -4,7 +4,7 @@
 
 # Personal Skills Collection
 
-`LightDevCoder/skills` 是公开的第一方 Agent Skills 集合；当前分支包含六个可以独立安装、独立发现、明确声明调用边界的 Skill。包内 `SKILL.md` 仍是行为权威；本 README 与用户指南负责说明使用方式。
+`LightDevCoder/skills` 是公开的第一方 Agent Skills 集合；当前分支包含七个可以独立安装、独立发现、明确声明调用边界的 Skill。包内 `SKILL.md` 仍是行为权威；本 README 与用户指南负责说明使用方式。
 
 > **简介：** Personal Skills Collection — Drive your creativity
 
@@ -20,6 +20,7 @@
 > 和[限制说明](docs/evidence/releases/v0.1.1/LIMITATIONS.zh-CN.md)。
 >
 > **当前分支准入：** `recap` 已通过本变更的低风险纯提示型快速通道，但尚未发布；
+> `language-learning` 的纯提示型快速通道证据已为本分支准备好。两者均未发布；
 > 稳定 v0.1.1 仍是原来的五个包。
 
 ## Quick Start
@@ -57,7 +58,7 @@ $review-loop init     # 冻结已有验收标准的 baseline
 
 ## 外部能力（External Capabilities）
 
-当前分支包含六个已准入第一方包：v0.1.1 的五个包，以及新准入但尚未发布的 `recap`。
+当前分支包含七个第一方包：v0.1.1 的五个包，新准入但尚未发布的 `recap`，以及已提议、尚未发布的 `language-learning`。
 
 以下是可选的 workflow 能力，来自外部或第三方来源，不属于默认集合：
 
@@ -79,6 +80,7 @@ $review-loop init     # 冻结已有验收标准的 baseline
 | [review-loop](skills/review-loop/SKILL.md) | 执行有边界的证据、修复和最终验收循环。 | Model-invoked；支持手动入口。 | skills/review-loop/ |
 | [project-init](skills/project-init/SKILL.md) | 从最小 preset 初始化已确认的软件、文稿、研究、知识、数据或 Skill-development 项目。 | 仅 user-invoked。 | skills/project-init/ |
 | [ask-light](skills/ask-light/SKILL.md) | 检查 host 并推荐一个下一 Skill 或 bounded recipe，不执行建议。 | 仅 user-invoked。 | skills/ask-light/ |
+| [language-learning](skills/language-learning/SKILL.md) | 通过六种学习模式辅导任意目标语言：课程、卡片、对话、语法、测验与沉浸。 | 仅 user-invoked。 | skills/language-learning/ |
 | [recap](skills/recap/SKILL.md) | 用严格一行总结当前 Agent session，不改变历史也不继续任务。 | 仅 user-invoked。 | skills/recap/ |
 | [learn-anything](skills/learn-anything/SKILL.md) | 从有足够证据的资料中提炼可复用 Agent Skill 方法。 | 仅 user-invoked。 | skills/learn-anything/ |
 | [manuscript-ops](skills/manuscript-ops/SKILL.md) | 治理跨格式、批次、审查和 handoff 的可复现文稿工程。 | Model-invoked；支持手动入口。 | skills/manuscript-ops/ |
@@ -108,3 +110,4 @@ $review-loop init     # 冻结已有验收标准的 baseline
 - [变更记录](CHANGELOG.zh-CN.md)
 - [发布收据](docs/evidence/releases/v0.1.1/RELEASE_RECEIPT.zh-CN.md)
 - [recap 准入证据](docs/evidence/admissions/recap/README.zh-CN.md)
+- [language-learning 准入证据](docs/evidence/admissions/language-learning/README.zh-CN.md)

docs/INSTALLATION.md

@@ -60,6 +60,16 @@ an unqualified default-branch command as a stable release pin, and do not
 publish a pinned `recap` command until a new tag exists and the command has
 succeeded against that released repository in a fresh environment.
 
+## Unreleased `language-learning` package
+
+`language-learning` has its prompt-only fast-track evidence staged on this
+branch but is not yet admitted and not present in v0.1.1. Its admission record
+is under [evidence/admissions/language-learning/](evidence/admissions/language-learning/README.md).
+Do not present an unqualified default-branch command as a stable release pin,
+and do not publish a pinned `language-learning` command until a new tag exists
+and the command has succeeded against that released repository in a fresh
+environment.
+
 ## Supported installation scopes
 
 | Scope | Destination policy | Required evidence |

docs/INSTALLATION.zh-CN.md

@@ -36,6 +36,10 @@ npx skills add LightDevCoder/skills#v0.1.1 --skill review-loop --yes --copy --ag
 
 `recap` 已通过纯提示型快速通道在本分支准入，但 v0.1.1 不包含它。它的 fresh-copy 安装与 discovery 检查见[准入记录](evidence/admissions/recap/README.zh-CN.md)。不要把无 fragment 的默认分支命令写成稳定 release pin；只有新 tag 已创建、并在 fresh 环境中针对已发布仓库成功运行后，才能发布 pinned `recap` 安装命令。
 
+## 未发布的 `language-learning` 包
+
+`language-learning` 的纯提示型快速通道证据已在本分支准备好，但尚未准入，v0.1.1 不包含它。准入记录见[准入证据](evidence/admissions/language-learning/README.zh-CN.md)。不要把无 fragment 的默认分支命令写成稳定 release pin；只有新 tag 已创建、并在 fresh 环境中针对已发布仓库成功运行后，才能发布 pinned `language-learning` 安装命令。
+
 ## 安装范围
 
 | 范围 | destination 规则 | 必需证据 |

docs/MAINTENANCE.md

@@ -22,8 +22,10 @@ Keep each fact in one authoritative location and link to it elsewhere:
 ## Current synchronization baseline
 
 The admitted collection on this branch contains exactly review-loop,
-project-init, ask-light, learn-anything, manuscript-ops, and recap. The recap
-package passed the prompt-only fast track but remains unreleased. Stable v0.1.1
+project-init, ask-light, learn-anything, manuscript-ops, recap, and the
+proposed, unreleased language-learning package. The recap package passed the
+prompt-only fast track but remains unreleased; language-learning has its
+prompt-only fast-track evidence staged but is not yet admitted. Stable v0.1.1
 contains the original five admitted packages. The check at
 [tests/collection-discovery-tests.ps1](../tests/collection-discovery-tests.ps1)
 guards package names, metadata, catalog entries, README links, header assets,

docs/MAINTENANCE.zh-CN.md

@@ -8,7 +8,7 @@
 
 每个事实只保留一个 authority，其他位置链接过去：包行为/触发/调用/输入/输出/资源以 `skills/<skill-name>/SKILL.md` 为准；变换包的 provenance 在 `ATTRIBUTION.md`；可读目录是 `CATALOG.md`；安装与证据是 `docs/INSTALLATION.md`；审查和 verdict 规则是 `docs/REVIEW_POLICY.md`；历史和 release notes 是 `CHANGELOG.md` 与真实 release；组合验证资产在 `docs/workflows/`。
 
-本分支的准入集合必须恰好包含 `review-loop`、`project-init`、`ask-light`、`learn-anything`、`manuscript-ops` 和 `recap`。`recap` 已通过纯提示型快速通道，但尚未发布；稳定 v0.1.1 仍包含原来的五个已准入包。`collection-discovery-tests.ps1` 负责检查包名、metadata、目录、README 链接、头图、治理路径、双语配对和退休 orchestration 边界，但不证明 runtime 或 fresh installation。
+本分支的准入集合必须恰好包含 `review-loop`、`project-init`、`ask-light`、`learn-anything`、`manuscript-ops`、`recap` 和已提议但尚未发布的 `language-learning`。`recap` 已通过纯提示型快速通道，但尚未发布；`language-learning` 的纯提示型快速通道证据已准备好，但尚未准入；稳定 v0.1.1 仍包含原来的五个已准入包。`collection-discovery-tests.ps1` 负责检查包名、metadata、目录、README 链接、头图、治理路径、双语配对和退休 orchestration 边界，但不证明 runtime 或 fresh installation。
 
 ## 变更流程与同步矩阵