diff --git a/ROADMAP.md b/ROADMAP.md
index 735315fe..4b89484e 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -7776,3 +7776,5 @@ Original filing (2026-04-18): the session emitted `SessionStart hook (completed)
 804. **`claw agents show <name> <extra>` and `claw skills show <name> <extra>` in text mode returned wrong `agent_not_found`/silent empty instead of catching extra args** — dogfooded 2026-05-27 on `bad1b97f`. Parity gap with JSON-mode fix #796: the text-mode show handlers in `commands/src/lib.rs` still used single-split `split_once(' ')` without checking for spaces in the extracted name. Fix: added `contains(' ')` guard to both text-mode show arms; extra tokens now return `unexpected extra arguments` with usage hint. 62 CLI contract tests pass. [SCOPE: claw-code]
 
 805. **`claw skills show <not-found>` in text mode silently returned "No skills found." instead of an error** — dogfooded 2026-05-27 on `2c3c0f60`. The text-mode show handler in `handle_skills_slash_command` returned `render_skills_report(&matched)` with an empty vec instead of checking for empty match and returning an error. JSON mode already returned `skill_not_found` since #706. Fix: added `matched.is_empty()` guard with `skill_not_found` error + `\n` hint suggesting `claw skills list`. 62 CLI contract tests pass. [SCOPE: claw-code]
+
+806. **`claw plugins show <not-found>` in text mode returned "No plugins installed." instead of an error** — dogfooded 2026-05-27 on `ae6a207d`. The text-mode path in `print_plugins` printed `payload.message` (the full list render) without checking if the requested plugin existed. JSON mode correctly returned `plugin_not_found`. Fix: added show-action filtering + not-found guard to text-mode path; added `starts_with("plugin_not_found:")` arm to classifier for the new error prefix. 63 CLI contract tests pass. [SCOPE: claw-code]
diff --git a/rust/crates/rusty-claude-cli/src/main.rs b/rust/crates/rusty-claude-cli/src/main.rs
index 225a27eb..14cfbba9 100644
--- a/rust/crates/rusty-claude-cli/src/main.rs
+++ b/rust/crates/rusty-claude-cli/src/main.rs
@@ -335,7 +335,7 @@ fn classify_error_kind(message: &str) -> &'static str {
         "unknown_agents_subcommand"
     } else if message.starts_with("agent not found:") {
         "agent_not_found"
-    } else if message.contains("is not installed") {
+    } else if message.contains("is not installed") || message.starts_with("plugin_not_found:") {
         "plugin_not_found"
     } else if message.contains("plugin source") && message.contains("was not found") {
         // #794: `plugins install /nonexistent/path` → "plugin source ... was not found"
@@ -6406,7 +6406,28 @@ impl LiveCli {
         }
         let payload = plugins_command_payload_for(&cwd, action, target)?;
         match output_format {
-            CliOutputFormat::Text => println!("{}", payload.message),
+            CliOutputFormat::Text => {
+                // #806: text-mode show must return error when plugin not found (parity with JSON)
+                let action_str = action.unwrap_or("list");
+                if matches!(action_str, "show" | "info" | "describe") {
+                    if let Some(name) = target {
+                        let needle = name.to_lowercase();
+                        let found = payload.plugins.iter().any(|p| {
+                            p.get("id")
+                                .and_then(|v| v.as_str())
+                                .map(|id| id.to_lowercase() == needle)
+                                .unwrap_or(false)
+                        });
+                        if !found {
+                            return Err(format!(
+                                "plugin_not_found: plugin '{}' not found\nRun `claw plugins list` to see available plugins.",
+                                name
+                            ).into());
+                        }
+                    }
+                }
+                println!("{}", payload.message);
+            }
             CliOutputFormat::Json => {
                 let action_str = action.unwrap_or("list");
                 // #743/#420: plugins help must return a usage envelope matching agents/mcp/skills help shape.