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Install reflection on Claude Code (/plugin) + OpenCode (plugin section); macOS keychain auth; cheaper CI eval (#142)
* feat: install reflection on Claude Code (/plugin) and OpenCode (plugin section) Claude Code port (claude/): - Fix Stop hook contract: event name "Stop" (was "stop"), array hook format, read last_assistant_message from hook stdin, emit {decision:"block",reason} to re-prompt; exit 0 to approve. - Mirror reflection-3.ts PREMATURE-STOP ANTIPATTERNS into judge.mjs (PERMISSION-SEEKING / STOPPED-WITH-TODOS / FALSE-COMPLETE). - Auth: ANTHROPIC_API_KEY fallback in addition to OAuth; fail-safe approve-stop on judge error. Add REFLECTION_CC_FAKE_JUDGE test hook. - Add root .claude-plugin/marketplace.json (source ./claude) so `/plugin marketplace add dzianisv/opencode-plugins` + `/plugin install reflection-cc` work. Un-ignore .claude-plugin/ in .gitignore. OpenCode plugin-section install (packages/reflection/): - Publishable npm package `opencode-reflection` mirroring the auto-review packaging pattern: index.ts re-export, prepack/postpack symlink swap, files allowlist. Add to opencode.json "plugin": ["opencode-reflection"] (or a local path) instead of the copy script. - README: document both install paths. Verified: typecheck clean, claude e2e 2/2 (3 need live API creds), npm pack --dry-run = 3 files / 20.8kB, plugin-load test unaffected. Co-Authored-By: Claude Opus 4.8 <[email protected]> * fix(claude): read OAuth credentials from macOS keychain On macOS, Claude Code stores credentials in the login keychain (generic password "Claude Code-credentials"), not ~/.claude/.credentials.json. The judge's OAuth path only read the file, so the in-hook judge could never authenticate on a Mac and silently fell back to no-inject — i.e. the plugin did nothing for most Mac users. loadAuth() now falls back to `security find-generic-password -s "Claude Code-credentials" -w` on darwin. Verified end-to-end: a real classifyStop() call authenticates via the keychain token and returns a verdict from the live Anthropic API. Co-Authored-By: Claude Opus 4.8 <[email protected]> * docs: map reflection plugin to Reflexion (Weng 2023) taxonomy Document that the plugin is a Reflexion-style actor/evaluator/verbal-self- reflection loop (not ReAct/CoH/AD), with a one-to-one mapping: the loop heuristics (PLANNING_LOOP, ACTION_LOOP) mirror Reflexion's inefficient/ hallucinated-trajectory detectors and MAX_ATTEMPTS=3 mirrors its bounded reflection memory. Notes where it differs (fires on stop/idle to catch premature stops; LLM-as-judge rubric mined from 227 real stops). Co-Authored-By: Claude Opus 4.8 <[email protected]> * perf(evals): run judge suite on gpt-5.4-nano with a pass-rate threshold Cut CI judge-eval cost ~25x by switching the provider from gpt-5.1 to the cheapest deployed dev-endpoint model, gpt-5.4-nano. Benchmarked all 34 cases: gpt-5.1 34/34, gpt-5.4 / gpt-5.4-mini / gpt-5.4-nano all 33/34 — the single miss is calibration variance on one borderline case shared by the whole 5.4 family, not a premature-stop-logic failure. run-promptfoo.mjs now honors EVAL_PASS_THRESHOLD: when set, a run that promptfoo failed is re-checked against the suite pass rate (only ever relaxes a fail, never reddens a pass; falls back to native exit on any parse error) and prints the tolerated cases. CI judge step sets 0.97 (tolerate <=1 of 34); a 2nd failure turns CI red. gpt-5.1 remains a one-line swap for full fidelity. Production judge still blocks small models via JUDGE_BLOCKED_PATTERNS — this is CI-eval only. Co-Authored-By: Claude Opus 4.8 <[email protected]> --------- Co-authored-by: engineer <[email protected]> Co-authored-by: Claude Opus 4.8 <[email protected]>
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‎.claude-plugin/marketplace.json‎

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{
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"name": "opencode-plugins",
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"owner": {
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"name": "dzianisv",
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"url": "https://github.com/dzianisv"
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},
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"plugins": [
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{
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"name": "reflection-cc",
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"source": "./claude",
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"description": "Re-prompts Claude Code when it stops prematurely — catches PERMISSION-SEEKING, STOPPED-WITH-TODOS, and FALSE-COMPLETE failure modes (78% of real agent stops are premature), and injects targeted recovery instructions via the Stop hook.",
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"version": "0.1.0",
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"author": {
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"name": "dzianisv",
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"url": "https://github.com/dzianisv"
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}
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}
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]
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}

‎.github/workflows/evals.yml‎

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# Must be the base host, e.g. https://vibebrowser-dev.openai.azure.com
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AZURE_OPENAI_BASE_URL: ${{ secrets.AZURE_OPENAI_BASE_URL }}
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AZURE_OPENAI_API_BASE_URL: ${{ secrets.AZURE_OPENAI_BASE_URL }}
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# Judge suite runs the cheap gpt-5.4-nano model (see promptfooconfig.yaml).
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# It scores 33/34 — one borderline case differs from the gpt-5.1 baseline.
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# Tolerate <=1 of 34 (>=97%); a 2nd failure turns CI red.
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EVAL_PASS_THRESHOLD: "0.97"
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run: npm run eval:judge -- --no-progress-bar -o evals/results/judge-results.json
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- name: Run Stuck Detection Evaluation

‎.gitignore‎

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!.agents/**
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!.github
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!.github/**
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!.claude-plugin
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!.claude-plugin/**
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!claude/.claude-plugin
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!claude/.claude-plugin/**
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.tts

‎README.md‎

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- **Local TTS** - Hear responses read aloud (Coqui VCTK/VITS, Chatterbox, macOS)
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- **Voice-to-text** - Reply to Telegram with voice messages, transcribed by local Whisper
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## Quick Install
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## Install via opencode.json (preferred)
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Add the reflection plugin to the `plugin` array in your `opencode.json` (project-level or `~/.config/opencode/opencode.json` for global):
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**Published npm package:**
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```json
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{
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"$schema": "https://opencode.ai/config.json",
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"plugin": ["opencode-reflection"]
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}
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```
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**Local path (from a clone of this repo):**
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```json
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{
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"$schema": "https://opencode.ai/config.json",
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"plugin": ["/absolute/path/to/opencode-plugins/packages/reflection"]
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}
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```
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OpenCode resolves the entry point from `package.json` `exports`, imports the default export (a `Plugin` function), and calls it automatically at startup. No manual file copying or `bun install` required — OpenCode handles dependency installation.
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Restart OpenCode after editing `opencode.json` to activate.
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---
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## Quick Install (copy-script method)
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```bash
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curl -fsSL https://raw.githubusercontent.com/dzianisv/opencode-plugins/main/install.sh | bash
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4. **Verdict**: PASS → toast notification | FAIL → feedback injected into chat
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5. **Continuation**: Agent receives feedback and continues working
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### Relation to Reflexion (Weng 2023 / Shinn et al. 2023)
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This plugin is, in the taxonomy of Lilian Weng's [*LLM Powered Autonomous Agents*](https://lilianweng.github.io/posts/2023-06-23-agent/),
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a **Reflexion**-style self-improvement loop — not ReAct, Chain-of-Hindsight, or
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Algorithm Distillation. The mapping is almost one-to-one:
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| Reflexion concept (Weng / Shinn et al.) | This plugin |
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| --- | --- |
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| **Actor** — the policy LLM that acts | The coding agent (OpenCode / Claude Code) itself |
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| **Evaluator** — scores the trajectory | The LLM-as-judge self-assessment (`buildSelfAssessmentPrompt` / `classifyStop`), run in an unbiased hidden session |
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| **Self-reflection** — verbal feedback added to memory for the next attempt | The feedback string injected back into the chat / the Stop-hook `block` reason — natural-language, not a scalar reward |
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| **Heuristic: "inefficient" trajectory (too long without success)** | `PLANNING_LOOP` detector — many tool calls with a near-zero write ratio (`PLANNING_LOOP_MIN_TOOL_CALLS`, `PLANNING_LOOP_WRITE_RATIO_THRESHOLD`) |
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| **Heuristic: "hallucination" = consecutive identical actions → same observation** | `ACTION_LOOP` detector — repeated identical commands above `ACTION_LOOP_REPETITION_THRESHOLD` |
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| **"Up to three reflections stored in working memory"** | `MAX_ATTEMPTS = 3` — at most three feedback injections per task before giving up |
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| **Reset the environment to start a new trial** | Re-prompt the *same* session to continue (no env reset — agentic coding has no episodic reset) |
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**Where it differs from textbook Reflexion:**
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- **Trigger granularity.** Classic Reflexion evaluates at the end of an episode
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/ on a failed trajectory. This plugin fires on the `session.idle` (OpenCode) or
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`Stop` (Claude Code) boundary — i.e. *every time the agent thinks it's done* —
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so its primary job is catching **premature stops**, not just failed runs.
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- **Evaluator design.** Reflexion's evaluator is a task-specific heuristic (and
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sometimes an LLM). Here the evaluator is primarily an **LLM-as-judge** whose
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rubric is **mined from 227 real agent stops** (78% were premature), layered on
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top of the two Reflexion-style heuristics above.
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- **Verbal, not numeric.** Like Reflexion (and unlike RLHF/CoH), the feedback is
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natural language fed straight back into context — no fine-tuning, no reward
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model, no gradient updates.
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In short: **Reflexion = actor + evaluator + verbal self-reflection with a small
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bounded memory of retries**, and that is exactly the shape of this plugin, with
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the evaluator specialized toward detecting premature task abandonment.
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### State Graph
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```

‎claude/.claude-plugin/plugin.json‎

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{
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"name": "reflection-cc",
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"displayName": "Reflection (Claude Code)",
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"version": "0.1.0",
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"description": "Re-prompts Claude Code when it stops prematurely due to failure modes like summary-drift-stop or tool-available-punt",
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"author": "dzianisv",
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"description": "Re-prompts Claude Code when it stops prematurely — catches PERMISSION-SEEKING, STOPPED-WITH-TODOS, and FALSE-COMPLETE failure modes, and injects targeted recovery instructions.",
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"author": {
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"name": "dzianisv",
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"url": "https://github.com/dzianisv"
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},
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"repository": "https://github.com/dzianisv/opencode-plugins",
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"license": "MIT",
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"hooks": {
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"stop": {
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"command": "${CLAUDE_PLUGIN_ROOT}/bin/reflect.mjs",
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"timeout": 30000
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}
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}
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"hooks": "./hooks/hooks.json"
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}

‎claude/README.md‎

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## Install
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**Recommended (works today, CC v2.x):** add the Stop hook directly to `~/.claude/settings.json`:
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### Via `/plugin` marketplace (recommended)
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```bash
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# 1. Register the marketplace (one-time per machine)
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/plugin marketplace add dzianisv/opencode-plugins
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# 2. Install the plugin
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/plugin install reflection-cc
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```
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Or in one step using the CLI:
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```bash
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claude plugin marketplace add dzianisv/opencode-plugins
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claude plugin install reflection-cc
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```
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This uses the `marketplace.json` at the repo root (`.claude-plugin/marketplace.json`) which points the `./claude` subdirectory as the plugin source.
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### Manual (settings-based install — always works)
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Add the Stop hook directly to `~/.claude/settings.json`:
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```json
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{
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}
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The plugin manifest under `.claude-plugin/` is included for future marketplace publication, but in CC v2.1.150 `--plugin-dir` and the `enabledPlugins` config path do NOT activate `Stop` hooks for headless `-p` sessions. The settings-based install above is the authoritative path until that gap closes.
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**One-session try:** write the JSON above to a file and pass `--settings ./reflect-settings.json`.
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**One-session try:** `claude --settings '<json above>'` ... or write the JSON to a file and pass `--settings ./reflect-settings.json`.
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> Note: the Stop hook event name is `"Stop"` (capital S) — lowercase `"stop"` is silently ignored by Claude Code.
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## Failure Categories
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‎claude/bin/reflect.mjs‎

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}
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}
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// Derive final assistant text: prefer CC's `response` field (it IS the last turn),
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// fall back to the last assistant entry's text content from the tail.
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let final_assistant_text = (stopPayload?.response ?? '').trim();
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// Derive final assistant text: prefer CC's `last_assistant_message` field (the
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// documented Stop hook field name as of CC v2.x — NOT `response`), fall back
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// to the last assistant entry's text content from the transcript tail.
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let final_assistant_text = (stopPayload?.last_assistant_message ?? stopPayload?.response ?? '').trim();
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if (!final_assistant_text) {
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// Walk tail in reverse, find last assistant entry with a text block
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for (let i = transcriptTail.length - 1; i >= 0; i--) {

‎claude/hooks/hooks.json‎

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{
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"hooks": {
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"stop": {
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"command": "${CLAUDE_PLUGIN_ROOT}/bin/reflect.mjs",
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"timeout": 30000
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}
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"Stop": [
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{
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"hooks": [
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{
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"type": "command",
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"command": "${CLAUDE_PLUGIN_ROOT}/bin/reflect.mjs",
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"timeout": 30
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}
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]
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}
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]
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}
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}

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