diff --git a/plugins-claude/session/.claude-plugin/plugin.json b/plugins-claude/session/.claude-plugin/plugin.json
index 1567db3..3bedf79 100644
--- a/plugins-claude/session/.claude-plugin/plugin.json
+++ b/plugins-claude/session/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "session",
-  "version": "4.9.2",
+  "version": "4.10.0",
   "dependencies": ["git-tools"],
   "description": "Work session management — issue-driven and freeform doors sharing an explore-then-plan spine, with multi-agent orchestration and a wrap-up skill that reviews, sweeps issues, and ships",
   "author": {
diff --git a/plugins-claude/session/README.md b/plugins-claude/session/README.md
index dfe3b36..f8bda0d 100644
--- a/plugins-claude/session/README.md
+++ b/plugins-claude/session/README.md
@@ -79,6 +79,12 @@ same either way.
 | Skill | Triggers on |
 |-------|-------------|
 | `session-summarize` | "what was I working on?", "session status", "catch me up", or returning to active work |
+| `session-start` | Beginning a new feature, fix, or refactor (not questions or trivial one-off edits) |
+| `session-end` | The work is complete and ready to land: "wrap up", "close out", "ready for a PR" |
+
+Only the short `description` of `session-start` / `session-end` is always in context; the
+full checklist loads when the skill is invoked, whether by you or by the model. The
+Copilot variants (`plugins-copilot/session/commands/`) stay user-invoked only.
 
 ## Finalizing: `session-end` vs `git-tools:ship`
 
diff --git a/plugins-claude/session/skills/session-end/SKILL.md b/plugins-claude/session/skills/session-end/SKILL.md
index 0054822..56beab7 100644
--- a/plugins-claude/session/skills/session-end/SKILL.md
+++ b/plugins-claude/session/skills/session-end/SKILL.md
@@ -1,7 +1,6 @@
 ---
-disable-model-invocation: true
 name: session-end
-description: "Wrap up the session: update docs, finish loose ends, review (unless already done) + fix, sweep issues, then ship"
+description: "Use when the user signals the session's work is complete and ready to land (wrap up, close out, finalize, ready for a PR): loads the full end checklist — docs, review, issue sweep so resolved issues get closed, then ship. Not for mid-task 'done'/'finish'."
 allowed-tools: Bash, Read, Edit, Write, Skill, Agent, AskUserQuestion, ExitWorktree
 ---
 
diff --git a/plugins-claude/session/skills/session-start/SKILL.md b/plugins-claude/session/skills/session-start/SKILL.md
index e13456e..a8ce0d8 100644
--- a/plugins-claude/session/skills/session-start/SKILL.md
+++ b/plugins-claude/session/skills/session-start/SKILL.md
@@ -1,7 +1,6 @@
 ---
-disable-model-invocation: true
 name: session-start
-description: "Start work from your description — explore the codebase and plan"
+description: "Use to begin a new unit of work (feature, fix, refactor) in a repo: loads the full start checklist — link related issues, branch, explore, plan. Not for questions or trivial one-off edits."
 allowed-tools: Bash, Agent, EnterPlanMode, AskUserQuestion, EnterWorktree, Read, Skill
 ---
 
@@ -20,7 +19,10 @@ issues instead, use `/session:session-issue`; for a read-only status view, use
 
 ### Phase 0 — Take the input and ground it
 
-1. The work comes from `$ARGUMENTS` (your description). If `$ARGUMENTS` is empty, ask
+1. The work comes from `$ARGUMENTS` (your description). If this skill was invoked by
+   the model rather than a slash command, `$ARGUMENTS` is empty: use the work the user
+   already described in the conversation as the description and do not re-ask. If
+   `$ARGUMENTS` is empty and nothing was described, ask
    the user what they want to work on (a single open-ended prompt) — do **not**
    enumerate a work board; `/session:session-issue` is the issue picker and
    `/session:session-summarize` is the status view.
diff --git a/plugins-copilot/session/.claude-plugin/plugin.json b/plugins-copilot/session/.claude-plugin/plugin.json
index 39b4791..81378a6 100644
--- a/plugins-copilot/session/.claude-plugin/plugin.json
+++ b/plugins-copilot/session/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "session",
-  "version": "4.9.2",
+  "version": "4.10.0",
   "description": "Work session management — issue-driven and freeform doors sharing an explore-then-plan spine, with multi-agent orchestration and a wrap-up skill that reviews, sweeps issues, and ships",
   "author": {
     "name": "Logan Gagne"