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lease-undeclared

A deny rule by default: it refuses a call graded under a lease id the job store has no row for, or a binding it tombstoned, and names what to run instead.

What it catches

A call graded under a lease id the job store has no row for, or a binding it tombstoned.

Default and override

By default this rule takes the decision deny. A workspace sets it by name, in its root magusfile, to deny, advise or off:

magus\guard.builtins({"lease-undeclared": "advise"})

A loosening takes effect once it is committed; a tightening applies at once.

Seeing it

A verdict names its rule in brackets, which is how you got here:

deny [lease-undeclared]: ...

A workspace that sets this rule to advise sees advise [lease-undeclared]: ... instead.

magus describe rule lease-undeclared prints the same entry at a terminal, and magus describe rules lists every rule this workspace enforces.

See also

ReferencePages in this section. The guardWhat magus session hook denies, what it only notes, and why: the five deny grounds, how a workspace sets a built-in rule, the file-write rules, the verdict contract a host wires into, and the observations magus records. ChangelogEvery change to magus, newest first, in Keep a Changelog format, starting with the unreleased entries. Generated from changes/unreleased/ and releases/*.yaml. check-timeout: a bound worker's magus run whose timeout is shorter than the target's last real run allows forA deny rule by default: it refuses a bound worker's magus run whose timeout is shorter than the target's last real run allows for, and names what to run instead.
guardruleslease-undeclareddeny
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Glossary

Workspace

The magus root directory that owns a set of projects and shared config; the unit magus operates over. Workspace in full.

Magusfile

The magusfile.buzz that declares a project's targets (as export funs) and binds its spells. Magusfile in full.

Buzz

The language magusfiles are written in (the .buzz engine). Buzz in full.

CI

An ordinary target you compose yourself with ctx.needs; magus does not hardcode its stages. It is the anchor magus affected ci keys off, and ci strips the rw charm. CI in full.

Agent

A model working through an agent host such as Claude Code, Codex, Cursor or OpenCode. magus treats an agent as one more caller of its CLI, MCP tools and console, held to the same checks as a person. Agent in full.

Job

The unit of delegated work, and one row of the job store: what an orchestrating agent handed out, with its goal, the checkpoint it was cut against, the paths it may write or must not touch, and the one check it runs. A job's holder is either a session, for work an orchestrator handed out, or the daemon, for its own maintenance. The store records; the agent guard is what reads those facts back when grading a write. Job in full.

Run

One target executing under one magus invocation, such as magus run test web or magus affected ci. A run keeps its captured output behind an output reference. Every magus run is a run whether or not any job asked for it; see Job for how the two relate. Run in full.

Lease

The grant a holder takes on a job: the write and read paths that job declared, enforced in the checkout that took it with magus job exec. A job is the piece of work; a lease is permission over it. Lease in full.

Lease id

The short identifier a worker carries (the --lease flag, or the magus.lease member of the W3C BAGGAGE environment channel) so its runs, journal facts, and guard verdicts attribute to the job it holds. Letters, digits and -_./: only. Lease id in full.

Conventions

This page uses none of the site's convention markers. The full set is on the conventions page.