A glossary of the terms used in this project's domain. Definitions describe what a term means, not how it is implemented.
- Agent — A named LLM role with a defined lane (permissions, tools, prompt); the unit of work delegation in the system.
- Orchestrator — The primary agent. Plans work, delegates to subagents, monitors them, and reconciles their results. One per session; cannot be disabled.
- Subagent — A specialist agent the orchestrator delegates bounded work to.
- Explorer — Subagent for fast codebase search and pattern matching.
- Librarian — Subagent for external documentation and library research.
- Oracle — Subagent for architecture, debugging strategy, and code review.
- Designer — Subagent for UI/UX design and visual polish.
- Fixer — Subagent for bounded implementation and execution.
- Observer — Subagent for visual/media analysis (images, PDFs, diagrams). Disabled by default.
- Council — A multi-LLM agent that runs several councillors and synthesizes their views.
- Councillor — A read-only LLM advisor dispatched as a subagent by the orchestrator. Each councillor is registered as
councillor-<name>from the council preset. Not hidden; visible in the TUI as panes. - Agent mode — SDK classification of an agent:
primary(orchestrator),subagent(specialist), orall(council, both user-facing and delegatable). - Protected agent — An agent that cannot be disabled (orchestrator).
- Custom agent — A user-defined agent supplied via config, distinct from the built-ins.
- ACP agent — An external agent defined via the Agent Communication Protocol, run through
acp_run. - Display name — A user-assignable name shown in @-mentions; may differ from the internal agent name.
- Agent alias — A legacy or alternate name that maps to a built-in agent. Rejected synonyms:
explore(useexplorer),frontend-ui-ux-engineer(usedesigner).
- Consensus — The synthesized conclusion of a council run, rated
unanimous,majority, orsplit. - Council preset — A named lineup of councillor configurations used for a council run. Plugin config uses
presetfor the selected agent-override set; council config usesdefault_presetfor the selected councillor lineup — thedefault_prefix disambiguates the active selection from the preset list within the council sub-object.
- Multiplexer — A terminal backend (tmux, zellij, herdr, or kitty) that hosts child agent panes. Set via `multiplexer.type`, which also accepts `auto` (auto-detect) and `none` (disabled).
- Multiplexer type — The selected backend:
auto,tmux,zellij,herdr,kitty, ornone. - Pane — A terminal region spawned by the multiplexer to run a child agent session.
- Child session — A background agent session hosted in a multiplexer pane and tracked by the session manager.
- Session manager — Tracks child sessions, spawns and closes multiplexer panes, and reacts to session lifecycle events. Note:
TmuxSessionManageris a deprecated alias — useMultiplexerSessionManager. - Close reason — Why a pane is closed:
idleordeleted.
- Background job — A delegated specialist task that runs asynchronously; tracked until its result is reconciled into the orchestrator's response.
- Background Job Board — The store of background job state and metadata.
- Background Job Coordinator — The layer that owns background-job lifecycle policy and deferred-close state, writing through the board.
- Job state — A background job's status:
running,completed,error,cancelled, orreconciled.reconciledis a distinct post-consumption phase marking that a terminal job's result has been folded into the orchestrator's response; it is not a terminal outcome itself. - Job alias — A short human-readable identifier for a background job (e.g.,
fix-1,exp-2). - Terminal state — A job state from which no further transition occurs (
completed,error,cancelled).
- Skill — A bundled, self-contained workflow or capability shipped with the plugin. Bundled skills: codemap, clonedeps, simplify, deepwork, reflect, worktrees, oh-my-opencode-slim. Note:
loop-engineeringexists on disk but is not registered as a bundled skill.
- Hook — A plugin extension point that reacts to OpenCode lifecycle events (e.g., apply-patch, filter-available-skills, loop-command, session-lifecycle).
- Loop — An auto-iterative run that executes work with an agent, verifies it against success criteria, and repeats until done or escalated.
- Loop session — The state of one loop run (goal, current phase, attempts, history).
- Loop phase — A stage of a loop:
executing,verifying,done,escalated, orcancelled. - Execute agent — The agent that performs loop work (
fixer,designer,explorer, orlibrarian). - Verify agent — The agent or strategy that verifies loop output (
oracle,observer, ortest). - Success criterion — A check that decides whether a loop iteration passed (test, build, lint, fileExists, command, oracle, observer, or manual).
- Interview — A question/answer flow that builds a persistent specification document from an idea.
- Spec block — A named section within a generated specification document.
- Interview dashboard — The web UI for managing an interview and entering answers.
- Companion — A native desktop mascot that reflects agent activity; launched and tracked by the companion manager.
- Plugin config — The user-facing configuration loaded from
oh-my-opencode-slim.jsonc. - Preset — A named set of per-agent overrides. The same word also names council councillor lineups (see Flagged).
- Model entry — A normalized model reference with an optional variant, used in fallback chains.
- Variant — An optional model qualifier (e.g., a preview build) used in fallback resolution.
- Fallback / failover — The mechanism that switches models when a call is rate-limited or returns empty.
- Disabled agents — Agents turned off via config;
observeris disabled by default.
Terms with genuine but non-blocking collisions or historical drift. Noted for awareness; no change required:
- "Presets" means two things — A plugin preset is a set of agent overrides; a council preset is a lineup of councillor models. Same word, different JSON paths and types; no structural conflict, but easy to confuse.
- Config naming convention — Config keys mix snake_case (
disabled_agents,main_pane_size) with camelCase (autoUpdate,backgroundJobs) with no documented rule. Historical drift;disabled_*keys are uniformly snake_case while the rest is mixed even within sub-objects.