docs: document agent isolation and result caching in maintenance docs

- Add explanation that each agent runs in isolation, preventing accidental cascading triggers
- Clarify that Maestro runs each agent once and caches results for follow-up questions
- Update style agent description to note context-aware application of project rules
- Wrap leaderboard test page/browser context in try/finally to ensure cleanup on failure

devplacepy/templates/docs/maintenance-agents.html

@@ -25,6 +25,12 @@ with copy-paste commands.
   build is broken.
 - Every run writes a small **report** (a JSON file and a readable summary) so you
   can see exactly what was found and fixed.
+- Each agent runs **in isolation**: it only ever uses its own reviewing tools, so
+  one agent can never trigger another or kick off the whole fleet by accident. Runs
+  stay fast and predictable.
+- When you ask Maestro to review **everything**, it runs each agent **once** and
+  remembers the results to answer your follow-up questions, instead of repeating the
+  same work.
 
 ## Meet the fleet
 
@@ -37,7 +43,7 @@ with copy-paste commands.
 | **Docs** | CLAUDE.md, AGENTS.md, README, and these docs pages stay in step with the code, shown to the right audience. |
 | **Feature completeness** | A new feature is wired all the way through: form, JSON schema, Devii tool, API docs, SEO, and README. |
 | **Duplication** | Shared helpers are reused instead of copy-pasted logic. |
-| **Style** | Naming, headers, typing, and formatting follow the project rules. |
+| **Style** | Naming, headers, typing, and formatting follow the project rules, applied with context so code that intentionally uses a pattern or character is left alone. |
 | **Frontend** | JavaScript modules, web components, and CSS follow the project's strict structure. |
 | **SEO** | Public pages carry the right search metadata and appear in the sitemap. |
 | **Tests** | Routes without an integration test get one written (the agent never runs the suite itself). |

devplacepy/templates/docs/maintenance-usage.html

@@ -30,7 +30,9 @@ python -m agents.maestro "is my documentation up to date?"
 ```
 
 Maestro defaults to **check** (read-only) for questions and confirms with you
-before it makes any change.
+before it makes any change. When you ask it to review the whole project, it runs
+each agent **once** and reuses those results to answer anything you ask next, so it
+never repeats the same sweep to look something up.
 
 ## Running one agent yourself