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Codex plugins for professional work

AI has the power. Codex provides the control.

Mparanza builds Codex plugins. Each gives Codex a specialist way of working for professional tasks.

Power is nothing without control.

The harness changes what AI can do.

AI provides the capabilities. Codex puts them in a working environment that can use files, run tools, follow instructions and create outputs. That harness is what we mean by control.

Open by design.

Vera and Clara are open-source Codex plugins. You can inspect the methods, controls, and code before using them—and adapt them to your work.

Free by design.

Vera and Clara are free to install and use. We welcome contributions to their development. We charge for consulting, implementation, and hosted services.

Secure by design.

In ordinary Vera and Clara workflows, Mparanza does not receive your client work.

Ordinary plugin workflows run inside your existing Codex environment. Your client prompts, files, and outputs do not pass through Mparanza.

See how your data is handled

Compliant by design.

Professional work may require Codex to read real client data.

Vera and Clara do not automatically anonymise data. They may use local Python to filter or aggregate information when useful. Data supplied to the model is processed through the user's existing ChatGPT plan.

  1. Use local Python when useful

    Filtering and aggregation can happen on your computer when they improve the work. They are not automatic anonymisation.

  2. Real data may reach the model

    Names, documents, original language, and case facts may enter the model context when the professional task needs them.

  3. Two processing categories

    Ordinary plugin functions use the existing ChatGPT plan. Mparanza-hosted services form a separate processing boundary.

One policy for Vera and Clara. No prompt-by-prompt paperwork.

See how your data is handled

Codex by design.

Mparanza is Vera and Clara: two plugins that apply the same Codex harness to two different professions.

Codex for accountants

Vera

A Codex plugin for client files, accounting checks, reconciliations and reporting.

  • From new-client work to regulatory research
  • Reviewable checks and reconciliations
  • Workpapers ready for professional review

Vera works directly on the firm's files. It handles new-client work and journal sampling, checks entries, reconciles records, and prepares reports or tax and regulatory research.

Explore Vera

Codex for consultants

Clara

A Codex plugin for presentations and ongoing project work.

  • Project context carried forward
  • Evidence gathered in one workspace
  • Briefs, presentations and decision packs

Clara brings documents, notes, interviews and recordings together in the project folder, then uses that context to create or revise presentations, briefs and decision packs.

Explore Clara