docs: naming sweep and platform wording

docs/tools/index.md

@@ -1,8 +1,8 @@
 ---
-summary: "Agent tool surface for Clawdbot (browser, canvas, nodes, cron) replacing clawdbot-* skills"
+summary: "Agent tool surface for Clawdbot (browser, canvas, nodes, cron) replacing legacy `clawdbot-*` skills"
 read_when:
   - Adding or modifying agent tools
-  - Retiring or changing clawdbot-* skills
+  - Retiring or changing `clawdbot-*` skills
 ---
 
 # Tools (Clawdbot)
@@ -235,7 +235,7 @@ Notes:
 - `reactions` returns per-emoji user lists (limited to 100 per reaction).
 - Reaction removal semantics: see [/tools/reactions](/tools/reactions).
 - `discord.actions.*` gates Discord tool actions; `roles` + `moderation` default to `false`.
-- `searchMessages` follows the Discord preview spec (limit max 25, channel/author filters accept arrays).
+- `searchMessages` follows the Discord preview feature constraints (limit max 25, channel/author filters accept arrays).
 - The tool is only exposed when the current provider is Discord.
 
 ### `whatsapp`

docs/tools/reactions.md

@@ -1,3 +1,8 @@
+---
+summary: "Reaction semantics shared across providers"
+read_when:
+  - Working on reactions in any provider
+---
 # Reaction tooling
 
 Shared reaction semantics across providers: