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hook-wiring-write

A deny rule by default: it refuses a leased or agent-attributed write to the host hook wiring or the workspace's ./magus, and names what to run instead.

What it catches

A leased or agent-attributed write to the host hook wiring or the workspace's ./magus.

Why

The wiring and the binary it runs decide whether any rule runs at all from the host's next call or session on, so no scope anybody hands out includes them. A write tool and a shell line are judged alike: a redirect, cp, mv, ln, tee, dd of=, install or rm whose target is .claude/settings.json, .claude/settings.local.json, another host's hook file or the workspace root's magus is refused, after the line's cds. A person's own session goes ahead, told which wiring file it is editing. A line that runs go is left to raw-tool, which advises the one relink of ./magus a checkout that cannot load its sources needs.

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({"hook-wiring-write": "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 [hook-wiring-write]: ...

A workspace that sets this rule to advise sees advise [hook-wiring-write]: ... instead.

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

See also

guardruleshook-wiring-writedeny
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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.

Target

A named operation (build, test, ...) you invoke with magus run <target>; it may compose a spell's tool-native operations and depend on other targets. Target in full.

Op

A single tool-native command a target composes (long form: operation); the middle of the work hierarchy (Spell to Op to Target). Op 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.

Tool

An action a model can call through its host: a name, a description, a typed input and a result. magus serves its tools over MCP, each a read of the workspace model or a run of the CLI it already has. Tool in full.

Session

An agent host's conversation, by the id the host delivers to its hooks. magus never mints one: a record with no session is unattributed, and the OS user it carries says whose account ran it. Session 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.

Conventions

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