Gemini Executive Synthesis

Dynamic tool discovery and refresh for AI agents (Codex) interacting with an agent operating system (AOS).

Technical Positioning

Ensuring real-time synchronization of agent capabilities with the underlying operating system's dynamic tool surface. Adherence to `tools.listChanged` notification standard.

SaaS Insight & Market Implications

This issue highlights a critical integration failure between Unicity AOS and Codex, where Codex fails to dynamically refresh its tool inventory despite AOS correctly signaling changes. The core problem is Codex's static tool catalog at MCP startup, rendering newly installed or removed capabilities unavailable or visible incorrectly to the agent session. This directly impacts agent operational efficiency and security, as agents operate with an outdated understanding of their permitted actions. For B2B SaaS, this represents a significant friction point in deploying adaptable AI agents, limiting real-time capability updates and potentially leading to security vulnerabilities if revoked tools remain accessible. The market implication is a demand for robust, real-time tool synchronization mechanisms in agent-OS interfaces to support dynamic, permission-driven AI environments.

Proprietary Technical Taxonomy

Raw Developer Origin & Technical Request

GitHub Issue Jul 20, 2026

Repo: unicity-aos/aos-ce

Track Codex dynamic MCP tool refresh support

## Summary

Unicity AOS can change an agent principal's MCP tool surface at runtime when capsules are installed, upgraded, removed, or re-granted. The AOS MCP bridge correctly advertises `tools.listChanged = true` and emits the standard `notifications/tools/list_changed` notification, but Codex currently keeps the tool inventory captured at MCP startup.

Upstream Codex issue: github.com/openai/codex/issu...

## Confirmed reproduction

- Host: Codex Desktop / CLI core `0.144.6` on macOS
- AOS: `2026.1.2`, principal `codex-code`
- Transport: plugin-provided stdio MCP server
- Change: hot-install a Forge capsule that adds `forge_guide`
- A fresh raw MCP connection reports `tools.listChanged: true`, includes `forge_guide` in `tools/list`, and successfully executes `tools/call` for it.
- The already-connected Codex thread continues exposing its previous nine AOS tools and cannot discover `forge_guide`.
- Calling an already-known AOS tool returns content from the updated live capsule, confirming that the runtime and connection are current while only Codex's tool catalog is stale.

## Impact

- A newly installed AOS capability is live but unavailable to the current Codex agent session.
- Removed or revoked tools can remain model-visible until the MCP manager is refreshed, even though AOS still enforces the real runtime boundary.
- Dynamic remote MCP servers, plugin-backed servers, and permission-dependent tool surfaces have the same problem.
- This interrupts the meta-h...

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Developer Debate & Comments

No active discussions extracted for this entry yet.

Frequently Asked Questions

Market intelligence mapped to Dynamic tool discovery and refresh for AI agents (Codex) interacting with an agent operating system (AOS)..

What is the technical positioning of Dynamic tool discovery and refresh for AI agents (Codex) interacting with an agent operating system (AOS).?

Based on our AI analysis of the original developer request, its primary technical positioning is: Ensuring real-time synchronization of agent capabilities with the underlying operating system's dynamic tool surface. Adherence to `tools.listChanged` notification standard.

How is the developer community reacting to Dynamic tool discovery and refresh for AI agents (Codex) interacting with an agent operating system (AOS).?

Yes, we have tracked 1 direct responses and active debates regarding this specific topic originating from GitHub Issue.

Which technical concepts are associated with Dynamic tool discovery and refresh for AI agents (Codex) interacting with an agent operating system (AOS).?

Our proprietary extraction maps Dynamic tool discovery and refresh for AI agents (Codex) interacting with an agent operating system (AOS). to adjacent architectural concepts including MCP tool surface, capsules, agent principal, tools.listChanged.

Are there startups building around Dynamic tool discovery and refresh for AI agents (Codex) interacting with an agent operating system (AOS).?

Yes, market intelligence reveals commercial overlap. A product named 'Codex 3.0 by OpenAI' focuses directly on this: Codex can now build, test & debug on autopilot

Engagement Signals

Replies

open

Issue Status

Cross-Market Term Frequency

Quantifies the cross-market adoption of foundational terms like MCP tool surface and capsules by tracking occurrence frequency across active SaaS architectures and enterprise developer debates.