# Workflow capability index Contract format: `2.0.0`
Contract content / skill / extension: `1.12.1` This compact generated index covers supported runtime globals and workflow-tool inputs. For constraints, compatibility behavior, internal boundaries, and dynamic-reference ownership, follow the [exhaustive generated facts](capability-details.md). ## Supported capability index | Name | Classification | Signature | Options and defaults | | --- | --- | --- | --- | | agent | runtime-global | `agent(prompt, options?) => Promise` | `label`: string (optional); default: derived from phase and call count
`phase`: string (optional); default: current phase
`schema`: plain JSON Schema (optional)
`strength`: "low" \| "medium" \| "high" (optional); default: no tier is sent; the agent's own tier, else agentTiers.defaultTier
`isolation`: "worktree" (optional); default: pi-subagents worktree policy
`thread`: string (optional); default: fresh session per call
`toolset`: string (optional); default: configured host/agent toolset hint
`excludeTools`: string[] (optional)
`agentType`: string (optional); default: general-purpose
`timeoutMs`: number \| null (optional); default: 1800000 (30min); null disables
`retries`: number (optional); default: run retry count | | parallel | runtime-global | `parallel(thunks) => Promise>` | — | | pipeline | runtime-global | `pipeline(items, ...stages) => Promise>` | — | | orchestrate | runtime-global | `orchestrate(tasks, options?) => Promise<{ results, tasks }>` | `onError`: "skip-dependents"\|"continue"\|"fail-fast" (optional); default: "skip-dependents" | | workflow | runtime-global | `workflow(savedName, childArgs?) => Promise` | — | | verify | runtime-global | `verify(item, options?) => Promise<{ real, realCount, total, votes }>` | `reviewers`: number (optional); default: 2
`threshold`: number (optional); default: 0.5
`lens`: string \| string[] (optional)
`strength`: "low" \| "medium" \| "high" (optional); default: "low" | | judgePanel | runtime-global | `judgePanel(attempts, options?) => Promise<{ index, attempt, score, judgments } \| undefined>` | `judges`: number (optional); default: 3
`rubric`: string (optional); default: overall quality and correctness
`strength`: "low" \| "medium" \| "high" (optional); default: "low" | | loopUntilDry | runtime-global | `loopUntilDry({ round, key?, consecutiveEmpty?, maxRounds? }) => Promise` | `round`: (roundIndex) => unknown[]; default: required
`key`: (item) => string (optional); default: JSON.stringify
`consecutiveEmpty`: number (optional); default: 2
`maxRounds`: number (optional); default: 50 | | completenessCheck | runtime-global | `completenessCheck(taskArgs, results, options?) => Promise<{ complete, missing? } \| null>` | `strength`: "low" \| "medium" \| "high" (optional); default: "medium" | | retry | runtime-global | `retry(thunk, options?) => Promise` | `attempts`: number (optional); default: 3
`until`: (result) => boolean (optional); default: accept first result | | gate | runtime-global | `gate(thunk, validator, options?) => Promise<{ ok, value, attempts }>` | `attempts`: number (optional); default: 3 | | checkpoint | runtime-global | `checkpoint(prompt, options?) => Promise` | `default`: unknown (optional); default: true when no UI and omitted
`headless`: "default" \| "abort" (optional); default: "default"
`kind`: "confirm" \| "input" \| "select" (optional); default: "confirm"
`choices`: string[] (optional)
`timeoutMs`: number (optional) | | log | runtime-global | `log(message) => void` | — | | console | runtime-global | `console: { log, info, warn, error }` | — | | phase | runtime-global | `phase(title, options?) => void` | `budget`: number (optional); default: positive soft pre-call token gate | | args | runtime-global | `args: unknown` | — | | cwd | runtime-global | `cwd: string` | — | | process | runtime-global | `process: { cwd(): string }` | — | | budget | runtime-global | `budget: { total, spent(), remaining() }` | — | | script | workflow-tool-input | `script?: string` | — | | name | workflow-tool-input | `name?: string` | — | | args | workflow-tool-input | `args?: unknown` | — | | background | workflow-tool-input | `background?: boolean = true` | — | | maxAgents | workflow-tool-input | `maxAgents?: number = 1000` | — | | concurrency | workflow-tool-input | `concurrency?: number = the host's pi-subagents maxConcurrent` | — | | agentRetries | workflow-tool-input | `agentRetries?: number = 0` | — | | agentTimeoutMs | workflow-tool-input | `agentTimeoutMs?: number = 1800000` | — | | tokenBudget | workflow-tool-input | `tokenBudget?: number` | — | | resumeFromRunId | workflow-tool-input | `resumeFromRunId?: string` | — | | export const meta | script-contract | `export const meta = { name, description, phases? }` | — | | determinism | script-contract | `Date.now(), Math.random(), no-argument new Date() unavailable` | — |