Remove PR loop feature entirely

The PR loop workflow is superseded by the /loop command combined with
GitHub PR review polling. This removes all PR loop implementation,
tests, documentation, templates, and supporting scripts.

Deleted PR-loop-only files: commands (start/cancel-pr-loop), hooks
(pr-loop-stop-hook), scripts (setup/cancel-pr-loop, check-bot-reactions,
check-pr-reviewer-status, fetch-pr-comments, poll-pr-reviews), prompt
templates (pr-loop/), test fixtures (setup-fixture-mock-gh), and all
PR loop test files.

Cleaned PR loop references from mixed files: hook validators, loop
library, template loader, bash validator, humanize.sh monitor,
monitor-common.sh, codex hooks config, install script, RLCR setup
mutual exclusion, SKILL.md, usage docs, and test harnesses.

The install script retains pr-loop-stop-hook.sh in its managed pattern
so upgrading users get stale hooks cleaned from their hooks.json.

Author: SihaoLiu

.gitignore

@@ -3,6 +3,7 @@ temp
 
 # Local Claude client settings
 /.claude/settings.json
+/.claude/scheduled_tasks.lock
 
 # Humanize state directories (runtime-generated, project-local)
 .humanize/

commands/cancel-pr-loop.md

@@ -1,5 +1,5 @@
 {
-  "description": "Humanize Codex Hooks - Native Stop hooks for RLCR and PR loops",
+  "description": "Humanize Codex Hooks - Native Stop hooks for RLCR loops",
   "hooks": {
     "Stop": [
       {
@@ -9,12 +9,6 @@
             "command": "{{HUMANIZE_RUNTIME_ROOT}}/hooks/loop-codex-stop-hook.sh",
             "timeout": 7200,
             "statusMessage": "humanize RLCR stop hook"
-          },
-          {
-            "type": "command",
-            "command": "{{HUMANIZE_RUNTIME_ROOT}}/hooks/pr-loop-stop-hook.sh",
-            "timeout": 7200,
-            "statusMessage": "humanize PR stop hook"
           }
         ]
       }

commands/start-pr-loop.md

@@ -68,7 +68,6 @@ Then use:
 
 ```bash
 humanize monitor rlcr   # Monitor RLCR loop
-humanize monitor pr     # Monitor PR loop
 ```
 
 ## Other Install Guides

config/codex-hooks.json

@@ -76,7 +76,7 @@ sed -n '1,220p' "${CODEX_HOME:-$HOME/.codex}/hooks.json"
 
 Expected:
 - `codex_hooks` is `true`
-- `hooks.json` contains `loop-codex-stop-hook.sh` and `pr-loop-stop-hook.sh`
+- `hooks.json` contains `loop-codex-stop-hook.sh`
 - `${XDG_CONFIG_HOME:-~/.config}/humanize/config.json` contains `bitlesson_model` set to a Codex/OpenAI model such as `gpt-5.4`
 - for `--target codex`, `${XDG_CONFIG_HOME:-~/.config}/humanize/config.json` also contains `provider_mode: "codex-only"`
 

docs/install-for-claude.md

@@ -63,8 +63,6 @@ The quiz is advisory, not a gate. You always have the option to proceed. But tha
 | `/cancel-rlcr-loop` | Cancel active loop |
 | `/gen-plan --input <draft.md> --output <plan.md>` | Generate structured plan from draft |
 | `/refine-plan --input <annotated-plan.md>` | Refine an annotated plan and generate a QA ledger |
-| `/start-pr-loop --claude\|--codex` | Start PR review loop with bot monitoring |
-| `/cancel-pr-loop` | Cancel active PR loop |
 | `/ask-codex [question]` | One-shot consultation with Codex |
 
 ## Command Reference
@@ -209,39 +207,6 @@ If `--alt-language` is set to a supported non-English language, the command also
 translated plan and QA variants by inserting `_<code>` before the file extension, such as
 `plan_zh.md` and `plan-qa_zh.md`.
 
-### start-pr-loop
-
-```
-/humanize:start-pr-loop --claude|--codex [OPTIONS]
-
-BOT FLAGS (at least one required):
-  --claude   Monitor reviews from claude[bot] (trigger with @claude)
-  --codex    Monitor reviews from chatgpt-codex-connector[bot] (trigger with @codex)
-
-OPTIONS:
-  --max <N>              Maximum iterations before auto-stop (default: 42)
-  --codex-model <MODEL:EFFORT>
-                         Codex model and reasoning effort (default from config, effort: medium)
-  --codex-timeout <SECONDS>
-                         Timeout for each Codex review in seconds (default: 900)
-  -h, --help             Show help message
-```
-
-The PR loop automates the process of handling GitHub PR reviews from remote bots:
-
-1. Detects the PR associated with the current branch
-2. Fetches review comments from the specified bot(s)
-3. Claude analyzes and fixes issues identified by the bot(s)
-4. Pushes changes and triggers re-review by commenting @bot
-5. Stop Hook polls for new bot reviews (every 30s, 15min timeout per bot)
-6. Local Codex validates if remote concerns are approved or have issues
-7. Loop continues until all bots approve or max iterations reached
-
-**Prerequisites:**
-- GitHub CLI (`gh`) must be installed and authenticated
-- Codex CLI must be installed
-- Current branch must have an associated open PR
-
 ### ask-codex
 
 ```
@@ -284,7 +249,7 @@ Current built-in keys:
 
 ### Codex Model Configuration
 
-All Codex-using features (RLCR loop, PR loop, ask-codex) share the same model configuration:
+All Codex-using features (RLCR loop, ask-codex) share the same model configuration:
 
 | Key | Default | Description |
 |-----|---------|-------------|
@@ -307,7 +272,7 @@ are unset, so BitLesson selection stays on the Codex/OpenAI path without probing
 
 Codex model is resolved with this precedence:
 1. CLI `--codex-model` flag (highest priority)
-2. Feature-specific defaults (e.g., PR loop defaults to `medium` effort)
+2. Feature-specific defaults
 3. Config-backed defaults from the 4-layer hierarchy above
 4. Hardcoded fallback (`gpt-5.4:high`)
 
@@ -327,16 +292,13 @@ source ~/.claude/plugins/cache/humania/humanize/<LATEST.VERSION>/scripts/humaniz
 # Monitor RLCR loop progress
 humanize monitor rlcr
 
-# Monitor PR loop progress
-humanize monitor pr
 ```
 
 Progress data is stored in `.humanize/rlcr/<timestamp>/` for each loop session.
 
 ## Cancellation
 
 - **RLCR loop**: `/humanize:cancel-rlcr-loop`
-- **PR loop**: `/humanize:cancel-pr-loop`
 
 ## Environment Variables
 

docs/install-for-codex.md

@@ -1,5 +1,5 @@
 {
-  "description": "Humanize Plugin Hooks - Validation hooks and Stop hooks for /start-rlcr-loop and /start-pr-loop",
+  "description": "Humanize Plugin Hooks - Validation hooks and Stop hooks for /start-rlcr-loop",
   "hooks": {
     "UserPromptSubmit": [
       {
@@ -67,11 +67,6 @@
             "type": "command",
             "command": "${CLAUDE_PLUGIN_ROOT}/hooks/loop-codex-stop-hook.sh",
             "timeout": 7200
-          },
-          {
-            "type": "command",
-            "command": "${CLAUDE_PLUGIN_ROOT}/hooks/pr-loop-stop-hook.sh",
-            "timeout": 7200
           }
         ]
       }