fix(#719): plugins list <filter> now applies substring filter on plugin id, matching agents/skills parity

ROADMAP.md

@@ -7603,3 +7603,5 @@ Original filing (2026-04-18): the session emitted `SessionStart hook (completed)
 717. **`claw agents show <name>` missing — `handle_agents_slash_command_json` only accepted `list`; `show/info/describe` was unimplemented unlike skills which had parity** — dogfooded 2026-05-26 on `6a007344`. `claw agents show claw-code --output-format json` returned `unknown_agents_subcommand` error. Fix: added `show/info/describe` and `list <filter>` arms to both `handle_agents_slash_command` and `handle_agents_slash_command_json`, mirroring the skills handler; renamed `render_agents_report_json` → `render_agents_report_json_with_action`; not-found path returns `{kind:"agents", action:"show", status:"error", error_kind:"agent_not_found", requested:"<name>"}` + Ok; added `classify_error_kind` branch for `agent_not_found`. Updated 2 tests. Source: Jobdori dogfood on `6a007344`, 2026-05-26.
 
 718. **`claw plugins show <name>` unimplemented — unlike `agents show` and `skills show`, `/plugins show` returned `unknown_plugins_action` error** — dogfooded 2026-05-26 on `8d80f2ff`. Fix: added `show/info/describe` arm to `handle_plugins_slash_command` that filters installed plugins by name; `print_plugins` JSON path filters `payload.plugins` when action is `show/info/describe` and emits `{kind:"plugin", action:"show", status:"error", error_kind:"plugin_not_found", requested:"<name>"}` for missing names. Updated error message in catch-all to name `show` as supported. Source: Jobdori dogfood on `8d80f2ff`, 2026-05-26.
+
+719. **`plugins list <filter>` silently returned all plugins instead of filtering — unlike `agents list <filter>` and `skills list <filter>` which do substring filter** — dogfooded 2026-05-26 on `556a598f`. `claw plugins list nonexistent-filter-xyz --output-format json` returned both installed plugins. Fix: `handle_plugins_slash_command` `list` arm now treats `target` as a substring filter; `print_plugins` JSON path applies `target` filter for `list` action. Source: Jobdori dogfood on `556a598f`, 2026-05-26.

rust/crates/commands/src/lib.rs

@@ -2202,7 +2202,16 @@ pub fn handle_plugins_slash_command(
     match action {
         None | Some("list") => {
             let report = manager.installed_plugin_registry_report()?;
-            let plugins = report.summaries();
+            let plugins: Vec<_> = if let Some(filter) = target {
+                let needle = filter.to_lowercase();
+                report
+                    .summaries()
+                    .into_iter()
+                    .filter(|p| p.metadata.id.to_lowercase().contains(&needle))
+                    .collect()
+            } else {
+                report.summaries().into_iter().collect()
+            };
             let failures = report.failures();
             Ok(PluginsCommandResult {
                 message: render_plugins_report_with_failures(&plugins, failures),

rust/crates/rusty-claude-cli/src/main.rs

@@ -5999,8 +5999,10 @@ impl LiveCli {
             CliOutputFormat::Text => println!("{}", payload.message),
             CliOutputFormat::Json => {
                 let action_str = action.unwrap_or("list");
-                // For show/info/describe, filter to the named plugin.
+                // For show/info/describe, filter to the named plugin (exact match).
+                // For list with a target, treat target as a substring filter.
                 let is_show_action = matches!(action_str, "show" | "info" | "describe");
+                let is_list_action = action_str == "list";
                 let filtered_plugins: Vec<_> = if is_show_action {
                     if let Some(name) = target {
                         let needle = name.to_lowercase();
@@ -6018,6 +6020,23 @@ impl LiveCli {
                     } else {
                         payload.plugins.clone()
                     }
+                } else if is_list_action {
+                    if let Some(filter) = target {
+                        let needle = filter.to_lowercase();
+                        payload
+                            .plugins
+                            .iter()
+                            .filter(|p| {
+                                p.get("id")
+                                    .and_then(|v| v.as_str())
+                                    .map(|id| id.to_lowercase().contains(&needle))
+                                    .unwrap_or(false)
+                            })
+                            .cloned()
+                            .collect()
+                    } else {
+                        payload.plugins.clone()
+                    }
                 } else {
                     payload.plugins.clone()
                 };