Merge pull request #106 from protocol-security/release/0.21.1

Bump 0.21.1 -- post-process exit-code propagation

Author: moodmosaic

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 ## Unreleased
 
+## 0.21.1 — 2026-06-08
+
+- **Fix: `post-process` propagates the container's exit code.**
+  `cmd_post_process` harvests unconditionally (best-effort recovery
+  of a crashed agent's in-flight commits) but now returns the
+  post-process container's exit code, so CI workflows and daemons
+  can gate publishing on it. A clean run still returns `0`;
+  previously the failure was swallowed whenever harvest succeeded.
+
 ## 0.21.0 — 2026-05-26
 
 - **Feature: interactive agent containers for human-guided work.**

USAGE.md

@@ -456,6 +456,12 @@ many consecutive sessions with no commits before the
 post-processor exits. When omitted it inherits the top-level
 `max_idle` (default: `3`).
 
+`./launch.sh post-process` (and `wait` when it triggers
+post-processing) exits with the post-process container's exit
+code. Harvest still runs first, so a crashed agent's in-flight
+commits are recovered locally, but a non-zero exit lets CI or
+daemons refuse to publish partial state.
+
 ## Context modes
 
 Motivated by [Evaluating AGENTS.md](https://arxiv.org/abs/2602.11988)

VERSION

@@ -1 +1 @@
-0.21.0
+0.21.1