docs(changelog): 2.3.0 notes skill writing on by default and ask-first skill deletion

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Leo310

CHANGELOG.md

@@ -36,6 +36,8 @@ A reworked chat composer, especially on mobile, agents that keep their memory an
 - **Chat: the mobile composer keeps up with the keyboard**, even in very large chats. It now slides with the keyboard as it opens and closes, and Obsidian's formatting toolbar is hidden while you type in the chat (#524, #525).
 - **Agents: memory in view.** The system prompt now carries an index of your memory notes (each note's `description`, or the whole note when it's marked `always: true`), so the agent knows what it remembers without searching. Guidance now routes user facts to memory and task lessons into the skill that was used (#514).
 - **Agents: skills are revised in place.** `manage_skills` gains a `patch` operation that changes one passage instead of rewriting the whole skill, and it only edits a skill the agent has loaded in that chat (#515).
+- **Agents: skill writing is on by default.** `manage_skills` now ships enabled, so the agent can put what it learned into the skill it used; turn it off per agent in the Tools modal (#517).
+- **Agents: skills are deleted only when you ask.** The agent removes a skill only when you ask for that skill to be deleted, whoever wrote it, and never to tidy up on its own. Core skills can't be deleted (#536).
 - **Agents: fewer narrating sentences.** The agent explains a tool call only when that tells you something new, and skips it for a single obvious lookup (#518, #519).
 - **Agents: lighter vault listings.** `list_directory` at the root returns a folder overview with file counts instead of every file, and every listing stays within a size budget. The explore-vault and Dataview skills now lean on tags, properties and queries first (#513).
 - **Settings: the prompt comparison dialog only compares.** It shows your version against the default, with Open note and Use default; you edit the real note (#529).