Add the server
The app is in review with OpenAI and not listed in ChatGPT yet. Until it is, turn on developer mode in ChatGPT's settings and add a custom app (connector) with this server URL.
MCP server URL
https://telarch.ai/mcpChatGPT · Codex
Telarch, as tools a model can call.
The Telarch app gives ChatGPT and Codex seven tools: fit context into a token budget, decide which memories are current, check a writer's lease, and seal or verify an audit chain. One of them opens an inspector inside the conversation.
Tools
Seven tools, one job each.
The names say which library the idea comes from. Every call is answered from its own inputs; nothing carries over to the next call.
| Tool | What it does |
|---|---|
harpe_synthesize_context | Fits candidate context items into a token budget, exactly or by priority, and reports what was kept and what was dropped. |
harpe_budget_evaluate | Works out how many tokens are left in a model's window after a safety margin, and how full the window is. |
kibisis_resolve_memory | Decides which memories are current when some were superseded or revoked, keeps tenants apart and keeps unverified entries out of verified recall. |
kibisis_lease_evaluate | Checks whether a writer's fencing token and lease still allow a write, or whether the write must be refused. |
argus_audit_seal | Hashes a list of agent events into a SHA-256 chain over canonical JSON. Refuses floating-point values, so results stay reproducible. |
argus_audit_verify | Walks a chain from the first event and names the first event that was changed. |
telarch_open_inspector | Opens an interactive inspector in the conversation for trying all three. |
Set it up
Hosted in ChatGPT, or on your own machine.
Run it locally
telarch-local is a stdio server with ten tools over the Python libraries: memory in an encrypted Kibisis vault, Harpe budgets and an Argus ledger, kept in the plugin's data folder on your disk. It needs Python with the three packages.
Python
pip install "harpe==0.1.0a12"
pip install "kibisis==0.1.0a16"
pip install "argus-ledger==0.1.0a8"Codex
Install the plugin
Add the repository as a plugin marketplace, then add a plugin. telarch-local runs the server on your machine; the hosted plugin is listed under the app's ID and calls telarch.ai/mcp.
Terminal
codex plugin marketplace add Perseus-Computing-LLC/telarch-openai-plugin
codex plugin add telarch-local@perseus-telarch-plugins
# or the hosted plugin:
codex plugin add app-6a5586fe76788191a23b6b2c873a44a6@perseus-telarch-pluginsPlainly
What the app is, and is not.
What it is
- A stateless server: it keeps nothing between calls and has no database or storage attached.
- The same methods as the libraries, written in JavaScript for the hosted server: exact knapsack selection, fencing-token checks and SHA-256 hash chains.
- Open source under the MIT License, like the libraries.
What it is not
- The hosted tools are not the Rust or Python libraries. For memory that persists, use
telarch-localor the libraries. - Not listed in ChatGPT yet; it is in review with OpenAI.
- Version 0.1.0: tool names and inputs may change.
Using Telarch with an agent?
Tell us what the agent does and where it runs. We will tell you plainly whether the app, the local plugin or the libraries fit.