diff --git a/ROADMAP.md b/ROADMAP.md
index 6dd0112..e2f0b9e 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -447,7 +447,7 @@ Model name prefix now wins unconditionally over env-var presence. Regression tes
 
 40. **Surface broken installed plugins before they become support ghosts** — community-support lane. Clawhip commit `ff6d3b7` on worktree `claw-code-community-support-plugin-list-load-failures` / branch `community-support/plugin-list-load-failures`. When an installed plugin has a broken manifest (missing hook scripts, parse errors, bad json), the plugin silently fails to load and the user sees nothing — no warning, no list entry, no hint. Related to ROADMAP #27 (host plugin path leaking into tests) but at the user-facing surface: the test gap and the UX gap are siblings of the same root. **Done (verified 2026-04-11):** `PluginManager::plugin_registry_report()` and `installed_plugin_registry_report()` now preserve valid plugins while collecting `PluginLoadFailure`s, and the command-layer renderer emits a `Warnings:` block for broken plugins instead of silently hiding them. Fresh proof: `cargo test -p plugins plugin_registry_report_collects_load_failures_without_dropping_valid_plugins -- --nocapture`, `cargo test -p plugins installed_plugin_registry_report_collects_load_failures_from_install_root -- --nocapture`, and a new `commands` regression covering `render_plugins_report_with_failures()` all pass on current main.
 
-41. **Stop ambient plugin state from skewing CLI regression checks** — community-support lane. Clawhip commit `7d493a7` on worktree `claw-code-community-support-plugin-test-sealing` / branch `community-support/plugin-test-sealing`. Companion to #40: the test sealing gap is the CI/developer side of the same root — host `~/.claude/plugins/installed/` bleeds into CLI test runs, making regression checks non-deterministic on any machine with a non-pristine plugin install. Closely related to ROADMAP #27 (dev/rust `cargo test` reads host plugin state). Track until merged to `main`.
+41. **Stop ambient plugin state from skewing CLI regression checks** — community-support lane. Clawhip commit `7d493a7` on worktree `claw-code-community-support-plugin-test-sealing` / branch `community-support/plugin-test-sealing`. Companion to #40: the test sealing gap is the CI/developer side of the same root — host `~/.claude/plugins/installed/` bleeds into CLI test runs, making regression checks non-deterministic on any machine with a non-pristine plugin install. Closely related to ROADMAP #27 (dev/rust `cargo test` reads host plugin state). **Done (verified 2026-04-11):** the plugins crate now carries dedicated test-isolation helpers in `rust/crates/plugins/src/test_isolation.rs`, and regression `claw_config_home_isolation_prevents_host_plugin_leakage()` proves `CLAW_CONFIG_HOME` isolation prevents host plugin state from leaking into installed-plugin discovery during tests.
 
 42. **`--output-format json` errors emitted as prose, not JSON** — dogfooded 2026-04-09. When `claw --output-format json prompt` hits an API error, the error was printed as plain text (`error: api returned 401 ...`) to stderr instead of a JSON object. Any tool or CI step parsing claw's JSON output gets nothing parseable on failure — the error is invisible to the consumer. **Fix (`a...`):** detect `--output-format json` in `main()` at process exit and emit `{"type":"error","error":"<message>"}` to stderr instead of the prose format. Non-JSON path unchanged. **Done** in this nudge cycle.