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feat: RFC 0052 blue install command - implemented

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Adds unified installation management for Claude Code integration:

  blue install      - Install hooks, skills, MCP server
  blue uninstall    - Remove Blue from Claude Code
  blue doctor       - Check installation health

Components managed:
- Hooks: session-start.sh (PATH), guard-write.sh (guard)
- Skills: Symlinks to ~/.claude/skills/
- MCP Server: Configuration in ~/.claude.json

Features:
- --hooks-only, --skills-only, --mcp-only flags
- --force to overwrite existing files
- Managed files tagged with "# Managed by: blue install"
- Idempotent - safe to run repeatedly

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Eric Garcia 2026-02-01 19:02:37 -05:00
parent 2216fc41d9
commit f5d3621495
6 changed files with 519 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
.blue/docs/rfcs/0052-cli-hook-management.draft.md → .blue/docs/rfcs/0052-cli-hook-management.impl.md
View file

@ -1,6 +1,6 @@
# RFC 0052: Blue Install Command
**Status**: Draft
**Status**: Implemented
**Created**: 2026-02-01
**Updated**: 2026-02-01
**Author**: Claude Opus 4.5

7
.claude/hooks/guard-write.sh
View file

@ -1,14 +1,11 @@
#!/bin/bash
# PreToolUse hook for Write/Edit/MultiEdit - enforces RFC 0038 worktree protection
# Managed by: blue install
# Blue PreToolUse hook - enforces RFC 0038 worktree protection
# Extract file_path directly with jq (recommended pattern - avoids cat hanging)
FILE_PATH=$(jq -r '.tool_input.file_path // empty')
# If no file_path, allow (shouldn't happen for Write/Edit)
if [ -z "$FILE_PATH" ]; then
exit 0
fi
# Call blue guard with the extracted path
# RFC 0051: PATH is set by SessionStart hook
blue guard --path="$FILE_PATH"

4
.claude/hooks/session-start.sh
View file

@ -1,6 +1,6 @@
#!/bin/bash
# SessionStart hook - sets up PATH for blue CLI
# RFC 0051: Portable hook binary resolution
# Managed by: blue install
# Blue SessionStart hook - sets up PATH for Claude Code
if [ -n "$CLAUDE_ENV_FILE" ] && [ -n "$CLAUDE_PROJECT_DIR" ]; then
echo "export PATH=\"\$CLAUDE_PROJECT_DIR/target/release:\$PATH\"" >> "$CLAUDE_ENV_FILE"

26
.claude/settings.json
View file

@ -1,22 +1,22 @@
{
"hooks": {
"PreToolUse": [
{
"hooks": [
{
"command": ".claude/hooks/guard-write.sh",
"type": "command"
}
],
"matcher": "Write|Edit|MultiEdit"
}
],
"SessionStart": [
{
"hooks": [
{
"type": "command",
"command": ".claude/hooks/session-start.sh"
}
]
}
],
"PreToolUse": [
{
"matcher": "Write|Edit|MultiEdit",
"hooks": [
{
"type": "command",
"command": ".claude/hooks/guard-write.sh"
"command": ".claude/hooks/session-start.sh",
"type": "command"
}
]
}

2
apps/blue-cli/Cargo.toml
View file

@ -25,3 +25,5 @@ serde.workspace = true
dirs.workspace = true
tempfile.workspace = true
serde_yaml.workspace = true
serde_json.workspace = true
which = "7.0"

498
apps/blue-cli/src/main.rs
View file

@ -315,6 +315,31 @@ enum Commands {
/// Session end (silent, used by hooks)
#[command(name = "session-end")]
SessionEnd,
/// Install Blue for Claude Code (RFC 0052)
Install {
/// Only install hooks
#[arg(long)]
hooks_only: bool,
/// Only install skills
#[arg(long)]
skills_only: bool,
/// Only configure MCP server
#[arg(long)]
mcp_only: bool,
/// Overwrite existing files
#[arg(long)]
force: bool,
},
/// Remove Blue from Claude Code (RFC 0052)
Uninstall,
/// Check Blue installation health (RFC 0052)
Doctor,
}
#[derive(Subcommand)]
@ -750,6 +775,15 @@ async fn tokio_main() -> Result<()> {
let _ = std::fs::remove_file(&session_file);
}
}
Some(Commands::Install { hooks_only, skills_only, mcp_only, force }) => {
handle_install_command(hooks_only, skills_only, mcp_only, force).await?;
}
Some(Commands::Uninstall) => {
handle_uninstall_command().await?;
}
Some(Commands::Doctor) => {
handle_doctor_command().await?;
}
}
Ok(())
@ -2690,3 +2724,467 @@ fn log_guard_bypass(path: &str, tool: Option<&str>, reason: &str) {
let _ = file.write_all(entry.as_bytes());
}
}
// ============================================================================
// RFC 0052: Blue Install Command
// ============================================================================
const SESSION_START_HOOK: &str = r#"#!/bin/bash
# Managed by: blue install
# Blue SessionStart hook - sets up PATH for Claude Code
if [ -n "$CLAUDE_ENV_FILE" ] && [ -n "$CLAUDE_PROJECT_DIR" ]; then
echo "export PATH=\"\$CLAUDE_PROJECT_DIR/target/release:\$PATH\"" >> "$CLAUDE_ENV_FILE"
fi
exit 0
"#;
const GUARD_WRITE_HOOK: &str = r#"#!/bin/bash
# Managed by: blue install
# Blue PreToolUse hook - enforces RFC 0038 worktree protection
FILE_PATH=$(jq -r '.tool_input.file_path // empty')
if [ -z "$FILE_PATH" ]; then
exit 0
fi
blue guard --path="$FILE_PATH"
"#;
async fn handle_install_command(hooks_only: bool, skills_only: bool, mcp_only: bool, force: bool) -> Result<()> {
use std::os::unix::fs::PermissionsExt;
let cwd = std::env::current_dir()?;
let home = dirs::home_dir().ok_or_else(|| anyhow::anyhow!("Could not find home directory"))?;
println!("Installing Blue for Claude Code...\n");
let install_all = !hooks_only && !skills_only && !mcp_only;
// Install hooks
if install_all || hooks_only {
println!("Hooks:");
install_hooks(&cwd, force)?;
}
// Install skills
if install_all || skills_only {
println!("\nSkills:");
install_skills(&cwd, &home)?;
}
// Install MCP server
if install_all || mcp_only {
println!("\nMCP Server:");
install_mcp_server(&cwd, &home)?;
}
println!("\nBlue installed. Restart Claude Code to activate.");
Ok(())
}
fn install_hooks(project_dir: &std::path::Path, force: bool) -> Result<()> {
use std::os::unix::fs::PermissionsExt;
let hooks_dir = project_dir.join(".claude").join("hooks");
std::fs::create_dir_all(&hooks_dir)?;
// Write session-start.sh
let session_start_path = hooks_dir.join("session-start.sh");
if !session_start_path.exists() || force {
std::fs::write(&session_start_path, SESSION_START_HOOK)?;
std::fs::set_permissions(&session_start_path, std::fs::Permissions::from_mode(0o755))?;
println!(" ✓ .claude/hooks/session-start.sh");
} else {
println!(" - .claude/hooks/session-start.sh (exists, use --force to overwrite)");
}
// Write guard-write.sh
let guard_write_path = hooks_dir.join("guard-write.sh");
if !guard_write_path.exists() || force {
std::fs::write(&guard_write_path, GUARD_WRITE_HOOK)?;
std::fs::set_permissions(&guard_write_path, std::fs::Permissions::from_mode(0o755))?;
println!(" ✓ .claude/hooks/guard-write.sh");
} else {
println!(" - .claude/hooks/guard-write.sh (exists, use --force to overwrite)");
}
// Update settings.json
let settings_path = project_dir.join(".claude").join("settings.json");
let settings = merge_hook_settings(&settings_path)?;
std::fs::write(&settings_path, serde_json::to_string_pretty(&settings)?)?;
println!(" ✓ .claude/settings.json (merged)");
Ok(())
}
fn merge_hook_settings(settings_path: &std::path::Path) -> Result<serde_json::Value> {
use serde_json::json;
let mut settings: serde_json::Value = if settings_path.exists() {
let content = std::fs::read_to_string(settings_path)?;
serde_json::from_str(&content).unwrap_or_else(|_| json!({}))
} else {
json!({})
};
// Ensure hooks object exists
if settings.get("hooks").is_none() {
settings["hooks"] = json!({});
}
// Add SessionStart hook
settings["hooks"]["SessionStart"] = json!([
{
"hooks": [
{
"type": "command",
"command": ".claude/hooks/session-start.sh"
}
]
}
]);
// Add PreToolUse hook
settings["hooks"]["PreToolUse"] = json!([
{
"matcher": "Write|Edit|MultiEdit",
"hooks": [
{
"type": "command",
"command": ".claude/hooks/guard-write.sh"
}
]
}
]);
Ok(settings)
}
fn install_skills(project_dir: &std::path::Path, home: &std::path::Path) -> Result<()> {
let skills_dir = project_dir.join("skills");
let target_dir = home.join(".claude").join("skills");
std::fs::create_dir_all(&target_dir)?;
if !skills_dir.exists() {
println!(" - No skills directory found");
return Ok(());
}
for entry in std::fs::read_dir(&skills_dir)? {
let entry = entry?;
let path = entry.path();
if path.is_dir() {
let skill_name = entry.file_name();
let link_path = target_dir.join(&skill_name);
// Remove existing symlink if present
if link_path.exists() || link_path.symlink_metadata().is_ok() {
std::fs::remove_file(&link_path).ok();
}
// Create symlink
std::os::unix::fs::symlink(&path, &link_path)?;
println!(" ✓ ~/.claude/skills/{} -> {}", skill_name.to_string_lossy(), path.display());
}
}
Ok(())
}
fn install_mcp_server(project_dir: &std::path::Path, home: &std::path::Path) -> Result<()> {
use serde_json::json;
let config_path = home.join(".claude.json");
let mut config: serde_json::Value = if config_path.exists() {
let content = std::fs::read_to_string(&config_path)?;
serde_json::from_str(&content).unwrap_or_else(|_| json!({}))
} else {
json!({})
};
// Ensure mcpServers object exists
if config.get("mcpServers").is_none() {
config["mcpServers"] = json!({});
}
// Add/update blue MCP server
let binary_path = project_dir.join("target").join("release").join("blue");
config["mcpServers"]["blue"] = json!({
"command": binary_path.to_string_lossy(),
"args": ["mcp"]
});
std::fs::write(&config_path, serde_json::to_string_pretty(&config)?)?;
println!(" ✓ ~/.claude.json (blue server configured)");
Ok(())
}
async fn handle_uninstall_command() -> Result<()> {
let cwd = std::env::current_dir()?;
let home = dirs::home_dir().ok_or_else(|| anyhow::anyhow!("Could not find home directory"))?;
println!("Removing Blue from Claude Code...\n");
// Remove hooks
println!("Hooks:");
uninstall_hooks(&cwd)?;
// Remove skills
println!("\nSkills:");
uninstall_skills(&cwd, &home)?;
// Remove MCP server
println!("\nMCP Server:");
uninstall_mcp_server(&home)?;
println!("\nBlue uninstalled.");
Ok(())
}
fn uninstall_hooks(project_dir: &std::path::Path) -> Result<()> {
let hooks_dir = project_dir.join(".claude").join("hooks");
// Remove hook scripts
let session_start = hooks_dir.join("session-start.sh");
if session_start.exists() {
// Check if managed by blue
if let Ok(content) = std::fs::read_to_string(&session_start) {
if content.contains("Managed by: blue install") {
std::fs::remove_file(&session_start)?;
println!(" ✓ Removed .claude/hooks/session-start.sh");
} else {
println!(" - .claude/hooks/session-start.sh (not managed by blue, skipped)");
}
}
}
let guard_write = hooks_dir.join("guard-write.sh");
if guard_write.exists() {
if let Ok(content) = std::fs::read_to_string(&guard_write) {
if content.contains("Managed by: blue install") {
std::fs::remove_file(&guard_write)?;
println!(" ✓ Removed .claude/hooks/guard-write.sh");
} else {
println!(" - .claude/hooks/guard-write.sh (not managed by blue, skipped)");
}
}
}
// Clean settings.json
let settings_path = project_dir.join(".claude").join("settings.json");
if settings_path.exists() {
if let Ok(content) = std::fs::read_to_string(&settings_path) {
if let Ok(mut settings) = serde_json::from_str::<serde_json::Value>(&content) {
if let Some(hooks) = settings.get_mut("hooks") {
if let Some(obj) = hooks.as_object_mut() {
obj.remove("SessionStart");
obj.remove("PreToolUse");
}
}
std::fs::write(&settings_path, serde_json::to_string_pretty(&settings)?)?;
println!(" ✓ Cleaned .claude/settings.json");
}
}
}
Ok(())
}
fn uninstall_skills(project_dir: &std::path::Path, home: &std::path::Path) -> Result<()> {
let skills_dir = project_dir.join("skills");
let target_dir = home.join(".claude").join("skills");
if !skills_dir.exists() {
println!(" - No skills to remove");
return Ok(());
}
for entry in std::fs::read_dir(&skills_dir)? {
let entry = entry?;
if entry.path().is_dir() {
let skill_name = entry.file_name();
let link_path = target_dir.join(&skill_name);
if link_path.symlink_metadata().is_ok() {
std::fs::remove_file(&link_path)?;
println!(" ✓ Removed ~/.claude/skills/{}", skill_name.to_string_lossy());
}
}
}
Ok(())
}
fn uninstall_mcp_server(home: &std::path::Path) -> Result<()> {
let config_path = home.join(".claude.json");
if config_path.exists() {
if let Ok(content) = std::fs::read_to_string(&config_path) {
if let Ok(mut config) = serde_json::from_str::<serde_json::Value>(&content) {
if let Some(servers) = config.get_mut("mcpServers") {
if let Some(obj) = servers.as_object_mut() {
obj.remove("blue");
}
}
std::fs::write(&config_path, serde_json::to_string_pretty(&config)?)?;
println!(" ✓ Removed blue from ~/.claude.json");
}
}
}
Ok(())
}
async fn handle_doctor_command() -> Result<()> {
use std::os::unix::fs::PermissionsExt;
let cwd = std::env::current_dir()?;
let home = dirs::home_dir().ok_or_else(|| anyhow::anyhow!("Could not find home directory"))?;
println!("Blue Installation Health Check\n");
let mut issues = 0;
// Check binary
println!("Binary:");
if let Ok(path) = which::which("blue") {
println!(" ✓ blue found at {}", path.display());
} else {
println!(" ✗ blue not found in PATH");
issues += 1;
}
// Check hooks
println!("\nHooks:");
let hooks_dir = cwd.join(".claude").join("hooks");
let session_start = hooks_dir.join("session-start.sh");
if session_start.exists() {
let is_executable = std::fs::metadata(&session_start)
.map(|m| m.permissions().mode() & 0o111 != 0)
.unwrap_or(false);
if is_executable {
println!(" ✓ session-start.sh (installed, executable)");
} else {
println!(" ✗ session-start.sh (not executable)");
issues += 1;
}
} else {
println!(" ✗ session-start.sh missing");
issues += 1;
}
let guard_write = hooks_dir.join("guard-write.sh");
if guard_write.exists() {
let is_executable = std::fs::metadata(&guard_write)
.map(|m| m.permissions().mode() & 0o111 != 0)
.unwrap_or(false);
if is_executable {
println!(" ✓ guard-write.sh (installed, executable)");
} else {
println!(" ✗ guard-write.sh (not executable)");
issues += 1;
}
} else {
println!(" ✗ guard-write.sh missing");
issues += 1;
}
let settings_path = cwd.join(".claude").join("settings.json");
if settings_path.exists() {
if let Ok(content) = std::fs::read_to_string(&settings_path) {
if content.contains("SessionStart") && content.contains("PreToolUse") {
println!(" ✓ settings.json configured");
} else {
println!(" ✗ settings.json missing hook configuration");
issues += 1;
}
}
} else {
println!(" ✗ settings.json missing");
issues += 1;
}
// Check skills
println!("\nSkills:");
let skills_dir = cwd.join("skills");
let target_dir = home.join(".claude").join("skills");
if skills_dir.exists() {
for entry in std::fs::read_dir(&skills_dir)? {
let entry = entry?;
if entry.path().is_dir() {
let skill_name = entry.file_name();
let link_path = target_dir.join(&skill_name);
if link_path.symlink_metadata().is_ok() {
// Check if symlink points to correct target
if let Ok(target) = std::fs::read_link(&link_path) {
if target == entry.path() {
println!(" ✓ {} (symlink valid)", skill_name.to_string_lossy());
} else {
println!(" ✗ {} (symlink points to wrong target)", skill_name.to_string_lossy());
issues += 1;
}
}
} else {
println!(" ✗ {} (symlink missing)", skill_name.to_string_lossy());
issues += 1;
}
}
}
} else {
println!(" - No skills directory");
}
// Check MCP server
println!("\nMCP Server:");
let config_path = home.join(".claude.json");
if config_path.exists() {
if let Ok(content) = std::fs::read_to_string(&config_path) {
if let Ok(config) = serde_json::from_str::<serde_json::Value>(&content) {
if let Some(servers) = config.get("mcpServers") {
if servers.get("blue").is_some() {
println!(" ✓ blue configured in ~/.claude.json");
// Check if binary path is correct
if let Some(cmd) = servers["blue"].get("command").and_then(|c| c.as_str()) {
if std::path::Path::new(cmd).exists() {
println!(" ✓ Binary path valid");
} else {
println!(" ✗ Binary path invalid: {}", cmd);
issues += 1;
}
}
} else {
println!(" ✗ blue not configured in ~/.claude.json");
issues += 1;
}
} else {
println!(" ✗ No mcpServers in ~/.claude.json");
issues += 1;
}
}
}
} else {
println!(" ✗ ~/.claude.json not found");
issues += 1;
}
// Summary
println!();
if issues == 0 {
println!("All checks passed.");
} else {
println!("{} issue(s) found. Run `blue install` to fix.", issues);
}
Ok(())
}