use super::super::{
generate_rewrite_script, make_executable, mcp_server_quiet_mode, resolve_binary_path,
resolve_binary_path_for_bash, write_file, REDIRECT_SCRIPT_CLAUDE,
};
pub(crate) fn install_claude_hook(global: bool) {
let Some(home) = crate::core::home::resolve_home_dir() else {
tracing::error!("Cannot resolve home directory");
return;
};
install_claude_hook_scripts(&home);
install_claude_hook_config(&home);
let scope = crate::core::config::Config::load().rules_scope_effective();
if scope != crate::core::config::RulesScope::Project {
install_claude_rules_file(&home);
install_claude_global_claude_md(&home);
install_claude_skill(&home);
}
let _ = global;
}
const CLAUDE_MD_BLOCK_START: &str = "<!-- lean-ctx -->";
const CLAUDE_MD_BLOCK_END: &str = "<!-- /lean-ctx -->";
const CLAUDE_MD_BLOCK_VERSION: &str = "lean-ctx-claude-v2";
const CLAUDE_MD_BLOCK_CONTENT: &str = "\
<!-- lean-ctx -->
<!-- lean-ctx-claude-v2 -->
## lean-ctx — Context Runtime
Always prefer lean-ctx MCP tools over native equivalents:
- `ctx_read` instead of `Read` / `cat` (cached, 10 modes, re-reads ~13 tokens)
- `ctx_shell` instead of `bash` / `Shell` (90+ compression patterns)
- `ctx_search` instead of `Grep` / `rg` (compact results)
- `ctx_tree` instead of `ls` / `find` (compact directory maps)
- Native Edit/StrReplace stay unchanged. If Edit requires Read and Read is unavailable, use `ctx_edit(path, old_string, new_string)` instead.
- Write, Delete, Glob — use normally.
Full rules: @rules/lean-ctx.md
Verify setup: run `/mcp` to check lean-ctx is connected, `/memory` to confirm this file loaded.
<!-- /lean-ctx -->";
fn install_claude_global_claude_md(home: &std::path::Path) {
let claude_dir = crate::core::editor_registry::claude_state_dir(home);
let _ = std::fs::create_dir_all(&claude_dir);
let claude_md_path = claude_dir.join("CLAUDE.md");
let existing = std::fs::read_to_string(&claude_md_path).unwrap_or_default();
if existing.contains(CLAUDE_MD_BLOCK_START) {
if existing.contains(CLAUDE_MD_BLOCK_VERSION) {
return;
}
let cleaned = remove_block(&existing, CLAUDE_MD_BLOCK_START, CLAUDE_MD_BLOCK_END);
let updated = format!("{}\n\n{}\n", cleaned.trim(), CLAUDE_MD_BLOCK_CONTENT);
write_file(&claude_md_path, &updated);
return;
}
if existing.trim().is_empty() {
write_file(&claude_md_path, CLAUDE_MD_BLOCK_CONTENT);
} else {
let updated = format!("{}\n\n{}\n", existing.trim(), CLAUDE_MD_BLOCK_CONTENT);
write_file(&claude_md_path, &updated);
}
}
fn remove_block(content: &str, start: &str, end: &str) -> String {
let s = content.find(start);
let e = content.find(end);
match (s, e) {
(Some(si), Some(ei)) if ei >= si => {
let after_end = ei + end.len();
let before = content[..si].trim_end_matches('\n');
let after = &content[after_end..];
let mut out = before.to_string();
out.push('\n');
if !after.trim().is_empty() {
out.push('\n');
out.push_str(after.trim_start_matches('\n'));
}
out
}
_ => content.to_string(),
}
}
fn install_claude_skill(home: &std::path::Path) {
let skill_dir = home.join(".claude/skills/lean-ctx");
let _ = std::fs::create_dir_all(skill_dir.join("scripts"));
let skill_md = include_str!("../../templates/SKILL.md");
let install_sh = include_str!("../../templates/skill_install.sh");
let skill_path = skill_dir.join("SKILL.md");
let script_path = skill_dir.join("scripts/install.sh");
write_file(&skill_path, skill_md);
write_file(&script_path, install_sh);
#[cfg(unix)]
{
use std::os::unix::fs::PermissionsExt;
if let Ok(mut perms) = std::fs::metadata(&script_path).map(|m| m.permissions()) {
perms.set_mode(0o755);
let _ = std::fs::set_permissions(&script_path, perms);
}
}
}
fn install_claude_rules_file(home: &std::path::Path) {
let rules_dir = crate::core::editor_registry::claude_rules_dir(home);
let _ = std::fs::create_dir_all(&rules_dir);
let rules_path = rules_dir.join("lean-ctx.md");
let desired = crate::rules_inject::rules_dedicated_markdown();
let existing = std::fs::read_to_string(&rules_path).unwrap_or_default();
if existing.is_empty() {
write_file(&rules_path, desired);
return;
}
if existing.contains(crate::rules_inject::RULES_VERSION_STR) {
return;
}
if existing.contains("<!-- lean-ctx-rules-") {
write_file(&rules_path, desired);
}
}
pub(crate) fn install_claude_hook_scripts(home: &std::path::Path) {
let hooks_dir = crate::core::editor_registry::claude_state_dir(home).join("hooks");
let _ = std::fs::create_dir_all(&hooks_dir);
let binary = resolve_binary_path();
let rewrite_path = hooks_dir.join("lean-ctx-rewrite.sh");
let rewrite_script = generate_rewrite_script(&resolve_binary_path_for_bash());
write_file(&rewrite_path, &rewrite_script);
make_executable(&rewrite_path);
let redirect_path = hooks_dir.join("lean-ctx-redirect.sh");
write_file(&redirect_path, REDIRECT_SCRIPT_CLAUDE);
make_executable(&redirect_path);
let wrapper = |subcommand: &str| -> String {
if cfg!(windows) {
format!("{binary} hook {subcommand}")
} else {
format!("{} hook {subcommand}", resolve_binary_path_for_bash())
}
};
let rewrite_native = hooks_dir.join("lean-ctx-rewrite-native");
write_file(
&rewrite_native,
&format!(
"#!/bin/sh\nexec {} hook rewrite\n",
resolve_binary_path_for_bash()
),
);
make_executable(&rewrite_native);
let redirect_native = hooks_dir.join("lean-ctx-redirect-native");
write_file(
&redirect_native,
&format!(
"#!/bin/sh\nexec {} hook redirect\n",
resolve_binary_path_for_bash()
),
);
make_executable(&redirect_native);
let _ = wrapper; }
pub(crate) fn install_claude_hook_config(home: &std::path::Path) {
let hooks_dir = crate::core::editor_registry::claude_state_dir(home).join("hooks");
let binary = resolve_binary_path();
let rewrite_cmd = format!("{binary} hook rewrite");
let redirect_cmd = format!("{binary} hook redirect");
let settings_path = crate::core::editor_registry::claude_state_dir(home).join("settings.json");
let settings_content = if settings_path.exists() {
std::fs::read_to_string(&settings_path).unwrap_or_default()
} else {
String::new()
};
let needs_update =
!settings_content.contains("hook rewrite") || !settings_content.contains("hook redirect");
let has_old_hooks = settings_content.contains("lean-ctx-rewrite.sh")
|| settings_content.contains("lean-ctx-redirect.sh");
if !needs_update && !has_old_hooks {
return;
}
let hook_entry = serde_json::json!({
"hooks": {
"PreToolUse": [
{
"matcher": "Bash|bash",
"hooks": [{
"type": "command",
"command": rewrite_cmd
}]
},
{
"matcher": "Read|read|ReadFile|read_file|View|view|Grep|grep|Search|search|ListFiles|list_files|ListDirectory|list_directory",
"hooks": [{
"type": "command",
"command": redirect_cmd
}]
}
]
}
});
if settings_content.is_empty() {
write_file(
&settings_path,
&serde_json::to_string_pretty(&hook_entry).unwrap_or_default(),
);
} else if let Ok(mut existing) = crate::core::jsonc::parse_jsonc(&settings_content) {
if let Some(obj) = existing.as_object_mut() {
obj.insert("hooks".to_string(), hook_entry["hooks"].clone());
write_file(
&settings_path,
&serde_json::to_string_pretty(&existing).unwrap_or_default(),
);
}
}
if !mcp_server_quiet_mode() {
println!("Installed Claude Code hooks at {}", hooks_dir.display());
}
}
pub(crate) fn install_claude_project_hooks(cwd: &std::path::Path) {
let binary = resolve_binary_path();
let rewrite_cmd = format!("{binary} hook rewrite");
let redirect_cmd = format!("{binary} hook redirect");
let settings_path = cwd.join(".claude").join("settings.local.json");
let _ = std::fs::create_dir_all(cwd.join(".claude"));
let existing = std::fs::read_to_string(&settings_path).unwrap_or_default();
if existing.contains("hook rewrite") && existing.contains("hook redirect") {
return;
}
let hook_entry = serde_json::json!({
"hooks": {
"PreToolUse": [
{
"matcher": "Bash|bash",
"hooks": [{
"type": "command",
"command": rewrite_cmd
}]
},
{
"matcher": "Read|read|ReadFile|read_file|View|view|Grep|grep|Search|search|ListFiles|list_files|ListDirectory|list_directory",
"hooks": [{
"type": "command",
"command": redirect_cmd
}]
}
]
}
});
if existing.is_empty() {
write_file(
&settings_path,
&serde_json::to_string_pretty(&hook_entry).unwrap_or_default(),
);
} else if let Ok(mut json) = crate::core::jsonc::parse_jsonc(&existing) {
if let Some(obj) = json.as_object_mut() {
obj.insert("hooks".to_string(), hook_entry["hooks"].clone());
write_file(
&settings_path,
&serde_json::to_string_pretty(&json).unwrap_or_default(),
);
}
}
println!("Created .claude/settings.local.json (project-local PreToolUse hooks).");
}