Documentation Index
Fetch the complete documentation index at: https://gump.build/docs/llms.txt
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Workflow YAML Spec
Complete reference for every field in a Gump workflow file.
Root fields
| Field | Type | Required | Description |
|---|
name | string | yes | Workflow identifier |
max_budget | float | no | Maximum cost in USD for the entire run |
max_timeout | string | no | Maximum wall-clock duration (e.g., "30m") |
max_tokens | int | no | Maximum tokens consumed for the entire run |
steps | list | yes | Ordered list of steps |
description and inputs from v0.0.3 have been removed. Inputs are deduced automatically.
Step fields
GET phase
| Field | Type | Description | Default |
|---|
prompt | string | Instructions for the agent (inline or file path) | Required if agent declared |
context | list | Files and commands injected into context | [] |
worktree | string | read-write, read-only, none | Derived from type |
session | string/object | new or from: <step_name> | new |
RUN phase
| Field | Type | Description | Default |
|---|
agent | string | Agent to use, or pass to skip RUN | Required |
guard | object | Circuit breakers during execution | {} |
hitl | string | before_gate, after_gate, or true (alias) | — |
GATE phase
| Field | Type | Description |
|---|
gate | list | Ordered list of checks, each producing pass/fail |
RETRY
| Field | Type | Description |
|---|
retry | list | Ordered list of entries with conditions and overrides |
retry[].exit | int | Stop retrying (required — no exit = dry-run error) |
Composition
| Field | Type | Description |
|---|
type | string | code, split, validate (required) |
each | list | Mini-workflow per task (split only) |
parallel | bool | Parallelize tasks (on split) or group steps |
steps | list | Sub-steps of a parallel group |
workflow | string | Path to a sub-workflow |
with | object | Inputs for a sub-workflow |
Guard fields
| Field | Type | Description |
|---|
max_turns | int | Kill if turns exceed this count |
max_budget | float | Kill if step cost exceeds this (USD) |
max_tokens | int | Kill if tokens consumed exceed this |
max_time | string | Kill if duration exceeds this. Alias: timeout |
no_write | bool | Kill if agent writes outside .gump/out/ |
Gate values
| Value | Description |
|---|
compile | Run the compile command (auto-detected or config) |
test | Run the test command |
lint | Run the lint command (skipped if not available) |
schema | Validate split output JSON format |
tests_found | Verify the test runner finds tests |
touched: "glob" | At least one file matching glob modified |
untouched: "glob" | No file matching glob modified |
coverage: N | Test coverage ≥ N% (optional) |
bash: "command" | Custom shell command. Exit 0 = pass |
validate: <path> | Workflow validator (type: validate, output = bool) |
Retry entry fields
| Field | Type | Description |
|---|
attempt: N | int | Apply from attempt N (sticky) |
not: <gate> | string | Apply if the named gate failed |
validate: <workflow> | string | Invoke a validator; apply if true |
exit: N | int | Stop at attempt N → FATAL |
agent | string | Override agent |
session | string | Override session (e.g., new) |
worktree | string | Override worktree (e.g., reset) |
prompt | string | Override entire prompt |
with | object | Inputs for a validate condition |