---
title: AGENTS
type: note
permalink: opencode-config/agents
---

## Memory System (Single: basic-memory)

Memory uses one persistent system: **basic-memory**.

- All persistent knowledge is stored in basic-memory notes, split across a **`main` project** (global/shared) and **per-repo projects** (project-specific).
- The managed per-repo basic-memory project directory is `<repo>/.memory/`.
- Do not edit managed `.memory/*` files directly; use basic-memory MCP tools for all reads/writes.
- **Migration note:** Older repo-local memory workflow artifacts (including `.memory.legacy/` and legacy contents from prior workflows) are non-authoritative and should not be edited unless you are explicitly migrating historical content into basic-memory.

### basic-memory

[basic-memory](https://github.com/basicmachines-co/basic-memory) is an MCP server that provides persistent knowledge through structured markdown files indexed in SQLite with semantic search.

### `main` vs per-repo projects

basic-memory organizes notes into **projects**. Two kinds exist:

1. **`main` (global/shared knowledge only)**
   - Reusable coding patterns (error handling, testing, logging)
   - Technology knowledge (how libraries/frameworks/tools work)
   - Convention preferences (coding style decisions that span projects)
   - Domain concepts that apply across projects
   - Cross-project lessons learned and retrospectives
   - SME guidance that isn't project-specific
   - User preferences and personal workflow notes

2. **Per-repo projects (project-specific knowledge only)**
   - Plans, decisions, research, gates, and session continuity for ONE repository
   - Project architecture and module knowledge
   - Project-specific conventions and patterns

**Hard rule:** Never store project-specific plans, decisions, research, gates, or sessions in `main`. Never store cross-project reusable knowledge in a per-repo project.

### Per-repo project setup (required)

Every code repository must have its own dedicated basic-memory project. This is non-negotiable.

**Creating a new per-repo project:**
Use `basic-memory_create_memory_project` (or the equivalent MCP tool) with:
- `project_name`: a short, kebab-case identifier for the repo (e.g., `opencode-config`, `my-web-app`, `data-pipeline`)
- `project_path`: the repo's `.memory/` subdirectory on disk (i.e., `<repo-root>/.memory`)

Example for this repo:
```
project_name: opencode-config
project_path: /home/alex/dotfiles/.config/opencode/.memory
```

**Checking if a project exists:**
Use `basic-memory_list_memory_projects` to see all projects. If the repo doesn't have one yet, create it before reading/writing project-specific notes.

**This repo's basic-memory project:** `opencode-config`

### MCP tools (available to all agents)

- `write_note(title, content, folder, tags, project)` — create/update a knowledge note
- `read_note(identifier, project)` — read a specific note by title or permalink
- `search_notes(query, project)` — semantic + full-text search across all notes
- `build_context(url, depth, project)` — follow knowledge graph relations for deep context
- `recent_activity(type, project)` — find recently added/updated notes
- `list_memory_projects()` — list all basic-memory projects
- `create_memory_project(project_name, project_path)` — create a new per-repo project

**The `project` parameter is critical.** Always pass `project="main"` for global notes and `project="<repo-project-name>"` for project-specific notes. Omitting the project parameter defaults to `main`.

**Note format:**
```markdown
---
title: Go Error Handling Patterns
permalink: go-error-handling-patterns
tags:
- go
- patterns
- error-handling
---
# Go Error Handling Patterns

## Observations
- [pattern] Use sentinel errors for expected error conditions #go
- [convention] Wrap errors with fmt.Errorf("context: %w", err) #go

## Relations
- related_to [[Go Testing Patterns]]
```

**Usage rules:**
- At session start, identify the repo's basic-memory project (see Session-Start Protocol below).
- Use `project` parameter on every MCP call to target the correct project.
- After completing work with reusable lessons, use `write_note` with `project="main"` to record them.
- Use WikiLinks `[[Topic]]` to create relations between notes.
- Use tags for categorization: `#pattern`, `#convention`, `#sme`, `#lesson`, etc.
- Use observation categories: `[pattern]`, `[convention]`, `[decision]`, `[lesson]`, `[risk]`, `[tool]`.

### Session-start protocol (required)

At the start of every session, before reading or writing any project-specific notes:

1. **Identify the repo.** Determine which repository you are working in (from the working directory or user context).
2. **Select the per-repo project.** Use `basic-memory_list_memory_projects` to find the repo's basic-memory project. If it doesn't exist, create it with `basic-memory_create_memory_project`.
3. **Load project context.** Query the per-repo project (`search_notes`/`build_context` with `project="<repo-project-name>"`) for relevant prior work, pending decisions, and in-progress items.
4. **Load global context.** Query `main` (`search_notes` with `project="main"`) for relevant cross-project knowledge when the task domain may have reusable guidance.

All subsequent project-specific reads/writes in the session must target the per-repo project. All global/shared reads/writes must target `main`.

### Project-specific note organization

Project notes in the per-repo basic-memory project are grouped by purpose:

- `knowledge/` — project architecture, modules, conventions, patterns
- `plans/` — one note per feature/task with scope, tasks, acceptance criteria
- `decisions/` — ADRs, SME guidance, design choices
- `research/` — investigation findings
- `gates/` — quality gate records (reviewer/tester verdicts)
- `sessions/` — session continuity notes

Use stable identifiers so agents can pass note references between delegations.

**Workflow: load context → work → update basic-memory**

1. **Session start:** Follow the session-start protocol above.
2. **Before each task:** Read relevant notes from the per-repo project (plans/decisions/research/sessions) and from `main` for reusable guidance.
3. **After each task:** Update project notes in the per-repo project (plans, decisions, research, gates, sessions). Record reusable lessons in `main`.
4. **Quality gates:** Record reviewer/tester outcomes in the per-repo project's `gates/` notes.

**Recording discipline:** Only record outcomes, decisions, and discoveries — never phase transitions, status changes, or ceremony checkpoints. If an entry would only say "we started phase X", don't add it. Memory notes preserve *knowledge*, not *activity logs*.

**Read discipline:**
- Read only the basic-memory notes relevant to the current task
- **Skip redundant reads** when the per-repo project already has no relevant content in that domain this session
- **Do not immediately re-read content you just wrote**
- Treat memory as a **tool**, not a ritual

**Linking is required.** When recording related knowledge across notes, add markdown cross-references and use `memory://` links where relevant.

### When to Use Which

| Knowledge type | Where to store | Project | Why |
|---|---|---|---|
| Reusable pattern/convention | `write_note` | `main` | Benefits all projects |
| SME guidance (general) | `write_note` | `main` | Reusable across consultations |
| Tech knowledge (general) | `write_note` | `main` | Reusable reference |
| Lessons learned | `write_note` | `main` | Cross-project value |
| User preferences | `write_note` | `main` | Span all projects |
| Project architecture | `knowledge/*` notes | per-repo project | Specific to this project |
| Active plans & gates | `plans/*` and `gates/*` notes | per-repo project | Project lifecycle state |
| Session continuity | `sessions/*` notes | per-repo project | Project-scoped session tracking |
| Project decisions (ADRs) | `decisions/*` notes | per-repo project | Specific to this project |
| Project research | `research/*` notes | per-repo project | Tied to project context |

## Instruction File

`AGENTS.md` is the only instruction file that should be maintained in this repo.

**Rules:**
- Put project instructions in `AGENTS.md` only
- Do not create or maintain mirrored instruction files or symlinks for other tools
- If another tool needs repo instructions, point it at `AGENTS.md` directly

**Content of this file:**
- Project overview and purpose
- Tech stack and architecture
- Coding conventions and patterns
- Build/test/lint commands
- Project structure overview

**Do NOT duplicate memory project contents** — `AGENTS.md` describes how to work with the project, not active plans, research, or decisions.

**When initializing or updating a project:**
1. Create or update `AGENTS.md` with project basics
2. Keep instruction maintenance centralized in `AGENTS.md`

**When joining an existing project:**
- Read `AGENTS.md` to understand the project
- If the instruction file is missing, create `AGENTS.md`

## Session Continuity

- Treat the per-repo basic-memory project as the persistent tracking system for work across sessions.
- At session start, query basic-memory (`search_notes`/`build_context`) for relevant prior work, pending decisions, and in-progress items.
- After implementation, update project notes in basic-memory with what changed, why it changed, and what remains next.
- If the work produced reusable knowledge (patterns, conventions, lessons learned), also record it in reusable basic-memory notes for cross-project benefit.

**This repo's basic-memory project:** `opencode-config`

## Clarification Rule

- If requirements are genuinely unclear, materially ambiguous, or have multiple valid interpretations that would lead to **materially different implementations**, use the `question` tool to clarify before committing to an implementation path.
- **Do not ask for clarification when the user's intent is obvious.** If the user explicitly states what they want (e.g., "update X and also update Y"), do not ask "should I do both?" — proceed with the stated request.
- Implementation-level decisions (naming, file organization, approach) are the agent's job, not the user's. Only escalate decisions that affect **user-visible behavior or scope**.

## Agent Roster

| Agent | Role | Model |
|---|---|---|
| `lead` | Primary orchestrator that decomposes work, delegates, and synthesizes outcomes. | `github-copilot/claude-opus-4` (global default) |
| `coder` | Implementation-focused coding agent for reliable code changes. | `github-copilot/gpt-5.3-codex` |
| `reviewer` | Read-only code/source review; records verdicts in basic-memory project notes. | `github-copilot/claude-opus-4.6` |
| `tester` | Validation agent for standard + adversarial testing; records outcomes in basic-memory project notes. | `github-copilot/claude-sonnet-4.6` |
| `explorer` | Fast read-only codebase mapper; records discoveries in basic-memory project notes. | `github-copilot/claude-sonnet-4.6` |
| `researcher` | Deep technical investigator; records findings in basic-memory project notes. | `github-copilot/claude-opus-4.6` |
| `librarian` | Documentation coverage and accuracy specialist. | `github-copilot/claude-opus-4.6` |
| `critic` | Pre-implementation gate and blocker sounding board; records verdicts in basic-memory project notes. | `github-copilot/claude-opus-4.6` |
| `sme` | Subject-matter expert for domain-specific consultation; records guidance in basic-memory notes. | `github-copilot/claude-opus-4.6` |
| `designer` | UI/UX specialist for interaction and visual guidance; records design decisions in basic-memory project notes. | `github-copilot/claude-sonnet-4.6` |

All agents except `lead`, `coder`, and `librarian` are code/source read-only. Agents with `permission.edit: allow` may update basic-memory notes for their recording duties; they must not edit implementation source files.

## Parallelization

- **Always parallelize independent work.** Any tool calls that do not depend on each other's output must be issued in the same message as parallel calls — never sequentially. This applies to bash commands, file reads, and subagent delegations alike.
- Before issuing a sequence of calls, ask: *"Does call B require the result of call A?"* If not, send them together.

## Human Checkpoint Triggers

When implementing features, the Lead must stop and request explicit user approval before dispatching coder work in these situations:

1. **Security-sensitive design**: Any feature involving encryption, auth flows, secret storage, token management, or permission model changes.
2. **Architectural ambiguity**: Multiple valid approaches with materially different tradeoffs that aren't resolvable from codebase conventions alone.
3. **Vision-dependent features**: Features where the user's intended UX or behavior model isn't fully specified by the request.
4. **New external dependencies**: Adding a service, SDK, or infrastructure component not already in the project.
5. **Data model changes with migration impact**: Schema changes affecting existing production data.

The checkpoint must present the specific decision, 2-3 concrete options with tradeoffs, a recommendation, and a safe default. Implementation-level decisions (naming, file organization, code patterns) are NOT checkpoints — only user-visible behavior and architectural choices qualify.

## Functional Verification (Implement → Verify → Iterate)

**Static analysis is not verification.** Type checks (`bun run check`, `tsc`), linters (`eslint`, `ruff`), and framework system checks (`python manage.py check`) confirm code is syntactically and structurally valid. They do NOT confirm the feature works. A feature that type-checks perfectly can be completely non-functional.

**Every implemented feature MUST be functionally verified before being marked complete.** "Functionally verified" means demonstrating that the feature actually works end-to-end — not just that it compiles.

### What Counts as Functional Verification

Functional verification must exercise the **actual behavior path** a user would trigger:

- **API endpoints**: Make real HTTP requests (`curl`, `httpie`, or the app's test client) and verify response status, shape, and data correctness. Check both success and error paths.
- **Frontend components**: Verify the component renders, interacts correctly, and communicates with the backend. Use the browser (Playwright) or run the app's frontend test suite.
- **Database/model changes**: Verify migrations run, data can be created/read/updated/deleted through the ORM or API, and constraints are enforced.
- **Integration points**: When a feature spans frontend ↔ backend, verify the full round-trip: UI action → API call → database → response → UI update.
- **Configuration/settings**: Verify the setting is actually read and affects behavior — not just that the config key exists.

### What Does NOT Count as Functional Verification

These are useful but insufficient on their own:

- ❌ `bun run check` / `tsc --noEmit` (type checking)
- ❌ `bun run lint` / `eslint` / `ruff` (linting)
- ❌ `python manage.py check` (Django system checks)
- ❌ `bun run build` succeeding (build pipeline)
- ❌ Reading the code and concluding "this looks correct"
- ❌ Verifying file existence or import structure

### The Iterate-Until-Working Cycle

When functional verification reveals a problem:

1. **Diagnose** the root cause (not just the symptom).
2. **Fix** via coder dispatch with the specific failure context.
3. **Re-verify** the same functional test that failed.
4. **Repeat** until the feature demonstrably works.

A feature is "done" when it passes functional verification, not when the coder returns without errors. The lead agent must never mark a task complete based solely on a clean coder return — the verification step is mandatory.

### Verification Scope by Change Type

| Change type | Minimum verification |
|---|---|
| New API endpoint | HTTP request with expected response verified |
| New UI feature | Browser-based or test-suite verification of render + interaction |
| Full-stack feature | End-to-end: UI → API → DB → response → UI update |
| Data model change | Migration runs + CRUD operations verified through API or ORM |
| Bug fix | Reproduce the bug scenario, verify it no longer occurs |
| Config/settings | Verify the setting changes observable behavior |
| Refactor (no behavior change) | Existing tests pass + spot-check one behavior path |

## Mandatory Quality Pipeline

**The reviewer and tester agents exist to be used — not decoratively.** Every non-trivial feature must go through the quality pipeline. Skipping reviewers or testers to "save time" creates broken features that cost far more time to debug later.

### Minimum Quality Requirements

- **Every feature gets a reviewer pass.** No exceptions for "simple" features — the session transcript showed that even apparently simple features (like provider selection) had critical bugs that a reviewer would have caught.
- **Every feature with user-facing behavior gets a tester pass.** The tester agent must be dispatched for any feature that a user would interact with. The tester validates functional behavior, not just code structure.
- **Features cannot be batch-validated.** Each feature gets its own review → test cycle. "I'll review all 6 workstreams at the end" is not acceptable — bugs compound and become harder to diagnose.

### The Lead Must Not Skip the Pipeline Under Time Pressure

Even when there are many features to implement, the quality pipeline is non-negotiable. It is better to ship 3 working features than 6 broken ones. If scope must be reduced to maintain quality, reduce scope — do not reduce quality.

## Requirement Understanding Verification

Before implementing a feature, the lead must verify its understanding of what the user actually wants — especially for features involving:

- **User-facing behavior models** (e.g., "the app should learn from my data" vs. "the user manually inputs preferences")
- **Implicit expectations** (e.g., "show available providers" implies showing which ones are *configured*, not just listing all possible providers)
- **Domain-specific concepts** (e.g., in a travel app, "preferences" might mean auto-learned travel patterns, not a settings form)

When in doubt, ask. A 30-second clarification prevents hours of rework on a fundamentally misunderstood feature.

This complements the Clarification Rule above — that rule covers *ambiguous requirements*; this rule covers *requirements that seem clear but may be misunderstood*. The test: "If I'm wrong about what this means, would I build something completely different?" If yes, verify.