feat(code): trace experimental mode in metadata - #4705
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Mason Daugherty (mdrxy) merged 3 commits intoJul 13, 2026
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> [!CAUTION] > Merging this PR will automatically publish to **PyPI** and create a **GitHub release**. For the full release process, see [`.github/RELEASING.md`](https://github.com/langchain-ai/deepagents/blob/main/.github/RELEASING.md). --- _Release notes preview: keep this section in sync with the package `CHANGELOG.md`. The published GitHub release body is extracted from the merged `CHANGELOG.md` by `release.yml`, not from this PR description._ --- ## [0.1.38](deepagents-code==0.1.37...deepagents-code==0.1.38) (2026-07-14) ### Features * Improve `/goal` criteria UX ([#4694](#4694)) ([06f46ff](06f46ff)) * Add interactive goal management ([#4693](#4693)) ([64205e2](64205e2)) * Conditionally drop `TodoListMiddleware` ([#4685](#4685)) ([d3a3077](d3a3077)) * Add `memory.auto_save` config flag ([#4700](#4700)) ([55b60ca](55b60ca)) * Trace experimental mode in metadata ([#4705](#4705)) ([22d5045](22d5045)) ### Bug Fixes * Align context diff rows with changed rows ([#4714](#4714)) ([f9915db](f9915db)) * Hydrate virtualized transcript on scroll offset changes ([#4646](#4646)) ([f77eeb0](f77eeb0)) * Keep TODO and edit tools expanded ([#4704](#4704)) ([1d549d3](1d549d3)) * Make `/goal` completion and grading reliable ([#4691](#4691)) ([9da63c6](9da63c6)) * Preflight Ollama host reachability before discovery probe ([#4702](#4702)) ([96fe71a](96fe71a)) * Quiet expected non-repo `git ls-files` logging ([#4701](#4701)) ([3d499db](3d499db)) * Rename `ls_agent_kind` to `ls_agent_purpose` ([#4708](#4708)) ([2678b16](2678b16)) * Run MCP login during a run, queue the restart ([#4643](#4643)) ([65e1ee8](65e1ee8)) * Show "Took <duration>" when `task` tool completes ([#4638](#4638)) ([19538e0](19538e0)) * Support unambiguous `read_file` gutters ([#4711](#4711)) ([2089b54](2089b54)) --- _End release notes preview._ --- > [!NOTE] > A **New Contributors** section is appended to the GitHub release notes automatically at publish time (see [Release Pipeline](https://github.com/langchain-ai/deepagents/blob/main/.github/RELEASING.md#release-pipeline), step 2). --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Mason Daugherty <github@mdrxy.com>
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Jul 30, 2026
Deep Agents Code traces now include `dcode_experimental: true` when `DEEPAGENTS_CODE_EXPERIMENTAL` is enabled. --- `DEEPAGENTS_CODE_EXPERIMENTAL` changes agent behavior, but traces currently do not record whether that mode was active. This adds `dcode_experimental: true` to trace-wide metadata whenever the environment flag resolves to a truthy value. The key remains absent otherwise, so default trace metadata is unchanged.
Marcelo5444
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Jul 30, 2026
> [!CAUTION] > Merging this PR will automatically publish to **PyPI** and create a **GitHub release**. For the full release process, see [`.github/RELEASING.md`](https://github.com/langchain-ai/deepagents/blob/main/.github/RELEASING.md). --- _Release notes preview: keep this section in sync with the package `CHANGELOG.md`. The published GitHub release body is extracted from the merged `CHANGELOG.md` by `release.yml`, not from this PR description._ --- ## [0.1.38](langchain-ai/deepagents@deepagents-code==0.1.37...deepagents-code==0.1.38) (2026-07-14) ### Features * Improve `/goal` criteria UX ([langchain-ai#4694](langchain-ai#4694)) ([06f46ff](langchain-ai@06f46ff)) * Add interactive goal management ([langchain-ai#4693](langchain-ai#4693)) ([64205e2](langchain-ai@64205e2)) * Conditionally drop `TodoListMiddleware` ([langchain-ai#4685](langchain-ai#4685)) ([d3a3077](langchain-ai@d3a3077)) * Add `memory.auto_save` config flag ([langchain-ai#4700](langchain-ai#4700)) ([55b60ca](langchain-ai@55b60ca)) * Trace experimental mode in metadata ([langchain-ai#4705](langchain-ai#4705)) ([22d5045](langchain-ai@22d5045)) ### Bug Fixes * Align context diff rows with changed rows ([langchain-ai#4714](langchain-ai#4714)) ([f9915db](langchain-ai@f9915db)) * Hydrate virtualized transcript on scroll offset changes ([langchain-ai#4646](langchain-ai#4646)) ([f77eeb0](langchain-ai@f77eeb0)) * Keep TODO and edit tools expanded ([langchain-ai#4704](langchain-ai#4704)) ([1d549d3](langchain-ai@1d549d3)) * Make `/goal` completion and grading reliable ([langchain-ai#4691](langchain-ai#4691)) ([9da63c6](langchain-ai@9da63c6)) * Preflight Ollama host reachability before discovery probe ([langchain-ai#4702](langchain-ai#4702)) ([96fe71a](langchain-ai@96fe71a)) * Quiet expected non-repo `git ls-files` logging ([langchain-ai#4701](langchain-ai#4701)) ([3d499db](langchain-ai@3d499db)) * Rename `ls_agent_kind` to `ls_agent_purpose` ([langchain-ai#4708](langchain-ai#4708)) ([2678b16](langchain-ai@2678b16)) * Run MCP login during a run, queue the restart ([langchain-ai#4643](langchain-ai#4643)) ([65e1ee8](langchain-ai@65e1ee8)) * Show "Took <duration>" when `task` tool completes ([langchain-ai#4638](langchain-ai#4638)) ([19538e0](langchain-ai@19538e0)) * Support unambiguous `read_file` gutters ([langchain-ai#4711](langchain-ai#4711)) ([2089b54](langchain-ai@2089b54)) --- _End release notes preview._ --- > [!NOTE] > A **New Contributors** section is appended to the GitHub release notes automatically at publish time (see [Release Pipeline](https://github.com/langchain-ai/deepagents/blob/main/.github/RELEASING.md#release-pipeline), step 2). --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Mason Daugherty <github@mdrxy.com>
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Deep Agents Code traces now include
dcode_experimental: truewhenDEEPAGENTS_CODE_EXPERIMENTALis enabled.DEEPAGENTS_CODE_EXPERIMENTALchanges agent behavior, but traces currently do not record whether that mode was active. This addsdcode_experimental: trueto trace-wide metadata whenever the environment flag resolves to a truthy value. The key remains absent otherwise, so default trace metadata is unchanged.