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Local context tooling for AI agents. Use it to select, shape, reuse, recover, and inspect context before inference when reading files, running shell commands, searching code, or exploring directories.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/yvgude/lean-ctx --skill lean-ctx命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
Review how the lean-ctx ctx_* MCP tools performed in the current session and file upstream issues for confirmed problems. Use when the user asks to review/audit lean-ctx tool performance, says "lean-ctx review", asks why ctx_* tools failed or fell back to native tools, or wants to report a lean-ctx bug.
Local context tooling for AI agents. Use it to select, shape, reuse, recover, and inspect context before inference when reading files, running shell commands, searching code, or exploring directories.
基于 SOC 职业分类
正在显示 SKILL.md
| name | lean-ctx |
| description | Local context tooling for AI agents. Use it to select, shape, reuse, recover, and inspect context before inference when reading files, running shell commands, searching code, or exploring directories. |
which lean-ctx || curl -fsSL https://raw.githubusercontent.com/yvgude/lean-ctx/main/skills/lean-ctx/scripts/install.sh | bash
lean-ctx setup
| Profile | Tools advertised |
|---|---|
| Lean (default, unpinned) | ctx_read, ctx_shell, shell, ctx_search, ctx_glob, ctx_tree, ctx_session, ctx_compose, ctx_callgraph, ctx_patch*, ctx_call, ctx_expand |
minimal | ctx_read, ctx_shell, ctx_search, ctx_glob, ctx_tree; ctx_call is also advertised as the fallback invoker |
standard | Minimal + ctx_compose, ctx_explore, ctx_knowledge, ctx_session, ctx_callgraph, ctx_graph, ctx_delta, ctx_execute, ctx_expand, ctx_overview, ctx_url_read, ctx_patch; ctx_call is also advertised as the fallback invoker |
power | Full public tool registry |
* Lean hides ctx_patch for clients with a reliable native editor. Disabled
tools, role policy, and client compatibility can further narrow every profile.
lean-ctx -c "git status"
lean-ctx -c "cargo test"
lean-ctx -c "npm install"
lean-ctx ls src/
| Mode | When |
|---|---|
anchored | Files you will edit (full text + N:hh| anchors for ctx_patch) |
full | Verbatim cached read |
map | Context-only (deps + exports) |
signatures | API surface only |
diff | After edits (changed lines) |
aggressive | Large files, syntax-stripped; JSON arrays row-deduped (lossless) |
entropy | Shannon filtering |
task | Task-relevant lines |
lines:N-M | Specific range |
auto | System selects optimal |
Re-reads may use the local cache. Set fresh=true to bypass it.
Redundant JSON (arrays of like objects) is crushed losslessly into a compact
_defaults + per-row form; if a slice was dropped, recover it with
ctx_expand(id, json_path=… | search=…).
Anchored editing keeps an exact, source-addressable view: ctx_read(mode="anchored") → ctx_patch(path, op, line, hash, new_text).
Never reproduce old text byte-for-byte; batch via ops:[…]; op=create writes new files.
Stale anchor → CONFLICT with fresh anchors (retry once). Native Edit/StrReplace stay fine;
ctx_edit (str_replace) is the legacy fallback via ctx_call/power profile.
Architecture: ctx_symbol, ctx_callgraph, ctx_impact, ctx_architecture, ctx_routes, ctx_smells, ctx_quality ↳ "What breaks if I change this file/class/type?" → ctx_impact (file-level blast radius; resolves same-package/namespace type usage with no import for C#, Java, Go and Kotlin). "Who calls this function?" → ctx_callgraph (symbol-level). "How navigable / how much is complexity costing me?" → ctx_quality (navigability score + token quality tax). Experimental local collaboration (explicit opt-in only): ctx_agent, ctx_share, ctx_task, ctx_handoff, ctx_workflow Verify: ctx_benchmark, ctx_verify, ctx_proof, ctx_review Batch: ctx_fill, ctx_execute, ctx_expand, ctx_pack
Full docs: https://leanctx.com/docs