fix(deepagents): backend adapter drops route prefixes - #691
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deepagents-acp
deepagents
@langchain/sandbox-standard-tests
@langchain/daytona
@langchain/deno
@langchain/modal
@langchain/node-vfs
@langchain/quickjs
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tested locally - need to merge for release. |
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Colin Francis (colifran)
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Jul 16, 2026
This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## deepagents@1.11.0 ### Minor Changes - [#671](#671) [`6ae9d1e`](6ae9d1e) Thanks [@hntrl](https://github.com/hntrl)! - feat(filesystem): add allowlist for filesystem middleware tools - [#669](#669) [`4643148`](4643148) Thanks [@hntrl](https://github.com/hntrl)! - feat(deepagents): add structured system prompt configuration - [#673](#673) [`eb18c70`](eb18c70) Thanks [@hntrl](https://github.com/hntrl)! - feat(backends): add delete protocol support Adds a `DeleteResult` type and optional backend `delete` method, preserves delete through backend protocol adaptation, and implements file deletion across the built-in state, store, filesystem, composite, context hub, sandbox, and node-vfs backends. ### Patch Changes - [#691](#691) [`39a7049`](39a7049) Thanks [@colifran](https://github.com/colifran)! - fix(deepagents): backend adapter drops route prefixes - [#672](#672) [`cc26c41`](cc26c41) Thanks [@hntrl](https://github.com/hntrl)! - fix(deepagents): allow custom middleware to replace defaults by name ## deepagents-acp@0.1.19 ### Patch Changes - Updated dependencies [[`39a7049`](39a7049), [`6ae9d1e`](6ae9d1e), [`cc26c41`](cc26c41), [`4643148`](4643148), [`eb18c70`](eb18c70)]: - deepagents@1.11.0 ## @langchain/node-vfs@0.2.1 ### Patch Changes - [#673](#673) [`eb18c70`](eb18c70) Thanks [@hntrl](https://github.com/hntrl)! - feat(backends): add delete protocol support Adds a `DeleteResult` type and optional backend `delete` method, preserves delete through backend protocol adaptation, and implements file deletion across the built-in state, store, filesystem, composite, context hub, sandbox, and node-vfs backends. ## @deepagents/evals@0.0.18 ### Patch Changes - Updated dependencies [[`39a7049`](39a7049), [`6ae9d1e`](6ae9d1e), [`cc26c41`](cc26c41), [`4643148`](4643148), [`eb18c70`](eb18c70)]: - deepagents@1.11.0 Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Hunter Lovell (hntrl)
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Jul 24, 2026
### Summary `adaptBackendProtocol` rebuilds the backend into a v2 backend protocol but drops its `routePrefixes`. Since `resolveBackend` runs every backend through the adapter, a resolved `CompositeBackend` was no longer detected as composite. That made the execute tool's guard fail at invocation and disable the execute tool even when filesystem permissions were correctly scoped to composite routes. This PR fixes this by forwarding `routePrefixes` through `adaptBackendProtocol` instead of dropping them. ### Tests Added unit tests in backends/utils.test.ts to verify that `routePrefixes` is forwarded through `adaptBackendProtocol` and `adaptSandboxProtocol` and not added for non-composite backends.
Hunter Lovell (hntrl)
pushed a commit
that referenced
this pull request
Jul 24, 2026
This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## deepagents@1.11.0 ### Minor Changes - [#671](#671) [`6ae9d1e`](6ae9d1e) Thanks [@hntrl](https://github.com/hntrl)! - feat(filesystem): add allowlist for filesystem middleware tools - [#669](#669) [`4643148`](4643148) Thanks [@hntrl](https://github.com/hntrl)! - feat(deepagents): add structured system prompt configuration - [#673](#673) [`eb18c70`](eb18c70) Thanks [@hntrl](https://github.com/hntrl)! - feat(backends): add delete protocol support Adds a `DeleteResult` type and optional backend `delete` method, preserves delete through backend protocol adaptation, and implements file deletion across the built-in state, store, filesystem, composite, context hub, sandbox, and node-vfs backends. ### Patch Changes - [#691](#691) [`39a7049`](39a7049) Thanks [@colifran](https://github.com/colifran)! - fix(deepagents): backend adapter drops route prefixes - [#672](#672) [`cc26c41`](cc26c41) Thanks [@hntrl](https://github.com/hntrl)! - fix(deepagents): allow custom middleware to replace defaults by name ## deepagents-acp@0.1.19 ### Patch Changes - Updated dependencies [[`39a7049`](39a7049), [`6ae9d1e`](6ae9d1e), [`cc26c41`](cc26c41), [`4643148`](4643148), [`eb18c70`](eb18c70)]: - deepagents@1.11.0 ## @langchain/node-vfs@0.2.1 ### Patch Changes - [#673](#673) [`eb18c70`](eb18c70) Thanks [@hntrl](https://github.com/hntrl)! - feat(backends): add delete protocol support Adds a `DeleteResult` type and optional backend `delete` method, preserves delete through backend protocol adaptation, and implements file deletion across the built-in state, store, filesystem, composite, context hub, sandbox, and node-vfs backends. ## @deepagents/evals@0.0.18 ### Patch Changes - Updated dependencies [[`39a7049`](39a7049), [`6ae9d1e`](6ae9d1e), [`cc26c41`](cc26c41), [`4643148`](4643148), [`eb18c70`](eb18c70)]: - deepagents@1.11.0 Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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Summary
adaptBackendProtocolrebuilds the backend into a v2 backend protocol but drops itsroutePrefixes. SinceresolveBackendruns every backend through the adapter, a resolvedCompositeBackendwas no longer detected as composite. That made the execute tool's guard fail at invocation and disable the execute tool even when filesystem permissions were correctly scoped to composite routes.This PR fixes this by forwarding
routePrefixesthroughadaptBackendProtocolinstead of dropping them.Tests
Added unit tests in backends/utils.test.ts to verify that
routePrefixesis forwarded throughadaptBackendProtocolandadaptSandboxProtocoland not added for non-composite backends.