> For the complete documentation index, see [llms.txt](https://docs.talus.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.talus.network/talus-docs-v2.1.0/reference/move/nexus_tool.md).

# nexus\_tool

Tool registry, authority, verification, policy-backed Invocation economy, and package initialization surfaces.

**Generated from:** the public Nexus Move Packages interface for the selected deployment (generated — do not hand-edit module signatures). Use released bindings and deployed effects to establish command availability.

### Modules

* [era](/talus-docs-v2.1.0/reference/move/nexus_tool/era.md) - Package era and protocol-version markers.
* [external\_verifier](/talus-docs-v2.1.0/reference/move/nexus_tool/external_verifier.md) - External verifier targets, witnesses, and immutable shared-object requirements.
* [finite\_credits](/talus-docs-v2.1.0/reference/move/nexus_tool/finite_credits.md) - Finite-credit Invocation policy resources and authorization.
* [fixed\_price](/talus-docs-v2.1.0/reference/move/nexus_tool/fixed_price.md) - Fixed-price Invocation policy resource and authorization.
* [🧾 nexus\_tool::invocation](/talus-docs-v2.1.0/reference/move/nexus_tool/invocation.md) - Exact policy-backed Invocation identity, reserve keys, placement, resolution, collection, and refund claims.
* [main](/talus-docs-v2.1.0/reference/move/nexus_tool/main.md) - Package initialization marker, not an application-callable entrypoint; use `tool_registry`, `tool_cashier`, and `invocation` for public operations.
* [tool\_authority](/talus-docs-v2.1.0/reference/move/nexus_tool/tool_authority.md) - Tool-owned authority marker types.
* [💰 nexus\_tool::tool\_cashier](/talus-docs-v2.1.0/reference/move/nexus_tool/tool_cashier.md) - ToolCashier policy directory, accepted-policy configuration, completed deposit inbox, collection, and public identity helpers.
* [time\_pass](/talus-docs-v2.1.0/reference/move/nexus_tool/time_pass.md) - Time-pass Invocation policy resources and authorization.
* [tool\_registry](/talus-docs-v2.1.0/reference/move/nexus_tool/tool_registry.md) - Registered Tool identity, immutable schema, package pointer, endorsement, and DAG binding.


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