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feat: Allow proxying tools within a MCP server - #341

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feat/allow-proxying-tools-in-a-server
Aug 13, 2026
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feat: Allow proxying tools within a MCP server#341
jcarver989 merged 4 commits into
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feat/allow-proxying-tools-in-a-server

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@jcarver989 jcarver989 commented Aug 13, 2026

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Prior to these changes users could enable dynamic tool discovery by configuring Aether to proxy all tools an MCP exposed.

This PR extends that to support proxying a subset of tools within an MCP server. A strong use case for this is you might want to give your agent access to all the tools our 1st party coding server offers (e.g. grep, ast-grep etc). But, to save tokens you might want the agent to start with only the Bash tool loaded.

Now users can do that easily in their settings.json by setting proxy: { "exclude": ["Bash"] } as an example.

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@contextbridge-pr-automation contextbridge-pr-automation Bot mentioned this pull request Aug 13, 2026
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jcarver989 pushed a commit that referenced this pull request Aug 19, 2026
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chore: release (#326)
2024921 
## 🤖 New release

* `aether-auth`: 0.1.11 -> 0.1.12
* `aether-utils`: 0.2.11 -> 0.2.12
* `aether-llm-codegen`: 0.2.18 -> 0.2.19
* `aether-llm`: 0.7.26 -> 0.7.27
* `aether-mcp-utils`: 0.5.31 -> 0.5.32
* `aether-acp-utils`: 0.3.37 -> 0.3.38
* `aether-agent-core`: 0.6.31 -> 0.6.32
* `aether-lspd`: 0.1.31 -> 0.1.32
* `aether-project`: 0.5.32 -> 0.5.33
* `aether-telemetry`: 0.1.12 -> 0.1.13
* `aether-mcp-servers`: 0.4.38 -> 0.4.39
* `aether-tui`: 0.2.19 -> 0.2.20
* `aether-wisp`: 0.4.39 -> 0.4.40
* `aether-agent-cli`: 0.7.35 -> 0.7.36
* `aether-evals`: 0.2.24 -> 0.2.25
* `aether-schemas`: 0.1.19 -> 0.1.20

<details><summary><i><b>Changelog</b></i></summary><p>

## `aether-auth`

<blockquote>

##
[0.1.12](aether-auth-v0.1.11...aether-auth-v0.1.12)
- 2026-08-19

### Added

- *(mcp)* support Client ID Metadata Documents
([#348](#348))

### Other

- Refactor/credential storage
([#345](#345))
</blockquote>

## `aether-utils`

<blockquote>

##
[0.2.12](aether-utils-v0.2.11...aether-utils-v0.2.12)
- 2026-08-19

### Added

- Allow proxying tools within a MCP server
([#341](#341))
</blockquote>

## `aether-llm-codegen`

<blockquote>

##
[0.2.19](aether-llm-codegen-v0.2.18...aether-llm-codegen-v0.2.19)
- 2026-08-19

### Other

- scheduled code-cleanup
([#331](#331))
</blockquote>

## `aether-llm`

<blockquote>

##
[0.7.27](aether-llm-v0.7.26...aether-llm-v0.7.27)
- 2026-08-19

### Added

- *(mcp)* support Client ID Metadata Documents
([#348](#348))

### Other

- Update models
([#363](#363))
- Update models
([#359](#359))
- Update models
([#349](#349))
- Refactor/credential storage
([#345](#345))
- cleanup warnings
- Update models
([#336](#336))
</blockquote>

## `aether-mcp-utils`

<blockquote>

##
[0.5.32](aether-mcp-utils-v0.5.31...aether-mcp-utils-v0.5.32)
- 2026-08-19

### Added

- Deferred (proxied) tools can now be composed via the Bash tool
([#360](#360))
- *(mcp)* support Client ID Metadata Documents
([#348](#348))
- Allow proxying tools within a MCP server
([#341](#341))
- *(mcp-servers)* Bash and Sub-agents can now be run in foreground or
background by main agent
([#340](#340))
- Support MCP tasks
([#339](#339))

### Fixed

- *(mcp)* classify OAuth challenges accurately
([#347](#347))

### Other

- *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0
([#285](#285))
- remove nested Cargo lockfiles
([#352](#352))
- Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip
requests (MRTR)
([#337](#337))
- Prefer connecting with new 7-28-2026 mcp protocol
([#332](#332))
</blockquote>

## `aether-acp-utils`

<blockquote>

##
[0.3.38](aether-acp-utils-v0.3.37...aether-acp-utils-v0.3.38)
- 2026-08-19

### Added

- Deferred (proxied) tools can now be composed via the Bash tool
([#360](#360))

### Other

- *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0
([#285](#285))
- Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip
requests (MRTR)
([#337](#337))
</blockquote>

## `aether-agent-core`

<blockquote>

##
[0.6.32](aether-agent-core-v0.6.31...aether-agent-core-v0.6.32)
- 2026-08-19

### Added

- Deferred (proxied) tools can now be composed via the Bash tool
([#360](#360))
- *(mcp)* support Client ID Metadata Documents
([#348](#348))
- Allow proxying tools within a MCP server
([#341](#341))
- *(mcp-servers)* Bash and Sub-agents can now be run in foreground or
background by main agent
([#340](#340))
- Support MCP tasks
([#339](#339))

### Fixed

- *(mcp)* classify OAuth challenges accurately
([#347](#347))

### Other

- *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0
([#285](#285))
- remove nested Cargo lockfiles
([#352](#352))
- Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip
requests (MRTR)
([#337](#337))
- scheduled code-cleanup
([#329](#329))
</blockquote>

## `aether-lspd`

<blockquote>

##
[0.1.32](aether-lspd-v0.1.31...aether-lspd-v0.1.32)
- 2026-08-19

### Other

- scheduled code-cleanup
([#328](#328))
</blockquote>

## `aether-project`

<blockquote>

##
[0.5.33](aether-project-v0.5.32...aether-project-v0.5.33)
- 2026-08-19

### Added

- Deferred (proxied) tools can now be composed via the Bash tool
([#360](#360))

### Other

- scheduled code-cleanup
([#328](#328))
</blockquote>

## `aether-telemetry`

<blockquote>

##
[0.1.13](aether-telemetry-v0.1.12...aether-telemetry-v0.1.13)
- 2026-08-19

### Other

- *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0
([#285](#285))
- Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip
requests (MRTR)
([#337](#337))
- scheduled code-cleanup
([#329](#329))
</blockquote>

## `aether-mcp-servers`

<blockquote>

##
[0.4.39](aether-mcp-servers-v0.4.38...aether-mcp-servers-v0.4.39)
- 2026-08-19

### Added

- Deferred (proxied) tools can now be composed via the Bash tool
([#360](#360))
- *(mcp-servers)* Bash and Sub-agents can now be run in foreground or
background by main agent
([#340](#340))
- Support MCP tasks
([#339](#339))

### Other

- scheduled code-cleanup
([#331](#331))
- Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip
requests (MRTR)
([#337](#337))
- scheduled code-cleanup
([#328](#328))
- release ([#325](#325))
</blockquote>

## `aether-tui`

<blockquote>

##
[0.2.20](aether-tui-v0.2.19...aether-tui-v0.2.20)
- 2026-08-19

### Other

- scheduled code-cleanup
([#331](#331))
</blockquote>

## `aether-wisp`

<blockquote>

##
[0.4.40](aether-wisp-v0.4.39...aether-wisp-v0.4.40)
- 2026-08-19

### Added

- Deferred (proxied) tools can now be composed via the Bash tool
([#360](#360))
- Support MCP tasks
([#339](#339))

### Other

- *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0
([#285](#285))
- Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip
requests (MRTR)
([#337](#337))
</blockquote>

## `aether-agent-cli`

<blockquote>

##
[0.7.36](aether-agent-cli-v0.7.35...aether-agent-cli-v0.7.36)
- 2026-08-19

### Added

- Deferred (proxied) tools can now be composed via the Bash tool
([#360](#360))
- Allow proxying tools within a MCP server
([#341](#341))
- *(mcp-servers)* Bash and Sub-agents can now be run in foreground or
background by main agent
([#340](#340))
- Support MCP tasks
([#339](#339))

### Other

- *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0
([#285](#285))
- Refactor/credential storage
([#345](#345))
- Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip
requests (MRTR)
([#337](#337))
- scheduled code-cleanup
([#329](#329))
- release ([#325](#325))
</blockquote>

## `aether-evals`

<blockquote>

##
[0.2.25](aether-evals-v0.2.24...aether-evals-v0.2.25)
- 2026-08-19

### Other

- scheduled code-cleanup
([#329](#329))
</blockquote>

## `aether-schemas`

<blockquote>

##
[0.1.20](aether-schemas-v0.1.19...aether-schemas-v0.1.20)
- 2026-08-19

### Other

- update Cargo.lock dependencies
</blockquote>


</p></details>

---
This PR was generated with
[release-plz](https://github.com/release-plz/release-plz/).

Co-authored-by: contextbridge-pr-automation[bot] <259134118+contextbridge-pr-automation[bot]@users.noreply.github.com>
@contextbridge-pr-automation contextbridge-pr-automation Bot mentioned this pull request Aug 19, 2026
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