> For the complete documentation index, see [llms.txt](https://docs.lpp-minduniverse.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lpp-minduniverse.org/lingua-pactum-protocol-lpp-documentation/6.-intent-and-trajectory-governance/6.5-material-mutation.md).

# 6.5 Material Mutation

**Material Mutation** occurs when an evolving task or action changes in a way that is significant to the legitimacy basis under which earlier admission was established.

Not every modification is material.

Agent systems must be able to:

* paraphrase,
* decompose work,
* select implementation details,
* or adapt execution strategy

without requiring a completely new constitutional process for every trivial change.

The governance question is whether the change affects something that matters to authority or admissibility.

#### Governance-Relevant Mutation

Depending on the applicable profile, material mutation may involve changes to factors such as:

* objective,
* target,
* scope,
* principal,
* delegation path,
* action type,
* consequence,
* execution environment,
* or other admission-relevant semantics.

The exact profile-specific criteria belong to the corresponding technical or domain specification.

#### Non-Material Transformation

A transformation may remain non-material when it changes representation without changing authorized meaning.

For example:

```
"Restart Service A"
```

may be normalized into a structured tool call representing the same authorized operation.

This does not necessarily create a new intent.

#### Material Transformation

By contrast:

```
Restart Service A
```

becoming:

```
Modify production-wide service configuration
```

changes the governance-relevant meaning.

The later action cannot rely solely on the fact that the earlier task was authorized.

#### Material Mutation Is Not Merely Semantic Distance

Materiality cannot be reduced to one universal similarity score.

A small textual change may create a major governance effect.

A large textual rewrite may preserve the same authorized meaning.

Therefore:

```
Textual Difference
≠
Material Mutation
```

The relevant question is:

> **Did the change alter the legitimate authority–intent relationship or the action's admission-relevant meaning?**