feat(sdk): allow ```write_file``` to overwrite existing files by imnishitha · Pull Request #4109 · langchain-ai/deepagents

Nishitha M (imnishitha) · 2026-06-22T15:31:12Z

write_file now creates or overwrites a file rather than failing when the target already exists. This removes the need for agents to use edit_file with the entire file as old_string for full rewrites, reducing unnecessary token usage. Tool description updated to guide the agent: use write_file for full rewrites, edit_file for targeted changes.

…o v0.7

open-swe

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codspeed-hq · 2026-06-23T15:10:50Z

Merging this PR will improve performance by 61.55%

⚡ 14 improved benchmarks
✅ 1 untouched benchmark
⏩ 85 skipped benchmarks¹

Performance Changes

	Mode	Benchmark	`BASE`	`HEAD`	Efficiency
⚡	WallTime	`test_scaling_subagents[10_subagents]`	607.7 ms	316.9 ms	+91.74%
⚡	WallTime	`test_scaling_subagents[5_subagents]`	345.3 ms	186.4 ms	+85.21%
⚡	WallTime	`test_with_multiple_subagents`	342.3 ms	186.9 ms	+83.11%
⚡	WallTime	`test_scaling_subagents[3_subagents]`	240.2 ms	133.7 ms	+79.69%
⚡	WallTime	`test_full_featured`	342 ms	196.4 ms	+74.1%
⚡	WallTime	`test_with_one_subagent`	135.5 ms	82.4 ms	+64.45%
⚡	WallTime	`test_scaling_subagents[1_subagents]`	135.4 ms	82.4 ms	+64.26%
⚡	WallTime	`test_scaling_tools[10_tools]`	85.4 ms	57.9 ms	+47.52%
⚡	WallTime	`test_with_tools`	83.6 ms	56.7 ms	+47.42%
⚡	WallTime	`test_scaling_tools[20_tools]`	88 ms	59.7 ms	+47.38%
⚡	WallTime	`test_scaling_tools[5_tools]`	84.2 ms	57.1 ms	+47.32%
⚡	WallTime	`test_create_deep_agent_minimal`	82.6 ms	56.1 ms	+47.26%
⚡	WallTime	`test_scaling_tools[1_tools]`	82.9 ms	56.4 ms	+47.06%
⚡	WallTime	`test_with_string_model_resolution`	82.8 ms	56.5 ms	+46.73%

Tip

Curious why this is faster? Comment @codspeedbot explain why this is faster on this PR, or directly use the CodSpeed MCP with your agent.

_{Comparing nm/change-overwrite-behaviour (b502e21) with main (8faf2b0)²}

85 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩
No successful run was found on v0.7 (fd78c7e) during the generation of this report, so main (8faf2b0) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

ccurme (ccurme) · 2026-06-23T19:07:19Z

        assert "fiery" in content or "Fiery" in content

-    def test_write_file_fail_already_exists_in_local(self):
+    def test_write_file_overwrites_existing_in_local(self):


I'm not sure these integration tests ever run fwiw

Eugene Yurtsev (eyurtsev) · 2026-06-22T18:47:16Z

@@ -446,26 +446,21 @@ def write(
        file_path: str,
        content: str,


write has two modes:

overwrite

append

This implements (1) which is probably correct

Eugene Yurtsev (eyurtsev) · 2026-06-24T15:36:53Z

-
-        # Create new file
-        file_data = create_file_data(content)
+            existing_file_data = self._convert_store_item_to_file_data(existing)


Old behavior was inefficient in terms of network requests. Current behavior is consistent with old behavior. We can revisit whether we want to preserve creation timestamp. (The cost of this can be 10-100 ms of latency.)

Eugene Yurtsev (eyurtsev) · 2026-06-24T15:40:23Z

        if preflight_error is not None:
            return preflight_error

        responses = self.upload_files([(file_path, content.encode("utf-8"))])


we should see if we can eliminate _write_preflight path entirely in a follow up PR.

Now that there's no file check existence, the responsibility for ensuring the parent directory exists should lie entirely with the upload_files API.

Squashed from #4109.

Squashed from langchain-ai#4109. Changes `write_file` from create-only behavior to whole-file replacement. The tool now creates the file when it is missing and replaces the entire file when it already exists. The tool description no longer requires reading the file first, because overwrite is an intentional write mode rather than an error case. BREAKING CHANGE: Agents can now overwrite existing files with `write_file` instead of receiving a file-exists error. Workflows, prompts, tests, or guardrails that relied on that error to force `edit_file` usage or to protect existing content must add explicit permission/HITL checks or use `edit_file` when preserving existing content matters.

## Description Depends on: langchain-ai/deepagents#4109 `write_file` now overwrites an existing file instead of erroring. Updates the built-in tool tables in the harness overview and tools pages, and adds a callout that this behavior requires `deepagents>=0.7.0a2` (Python only for no, the JS package still errors on overwrite). ## Test Plan - [ ] `npx markdownlint-cli src/oss/deepagents/tools.mdx src/oss/deepagents/overview.mdx` — no new lint errors introduced by this change _Opened collaboratively by Nishitha Madhu and open-swe_ --------- Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>

> [!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`. Publish reads the merged CHANGELOG via `release.yml`, not this PR description — keep them aligned anyway so the PR stays an accurate historical record for reviewers and anyone returning later._ --- ## [0.7.0](deepagents==0.6.12...deepagents==0.7.0) (2026-07-29) See [the docs](https://docs.langchain.com/oss/python/releases/changelog#deepagents-v0-7-0) for curated release notes. ### ⚠ BREAKING CHANGES * `create_deep_agent` no longer includes `TodoListMiddleware` by default, the `write_todos` tool, `todos` state channel, and todo-planning prompt are now absent. Pass `middleware=[TodoListMiddleware()]` to restore them on the main agent; add it to each `SubAgent`'s middleware to restore them there. ([#4929](#4929)) ([9340518](9340518)) * Default agent prompts are now lean: the authored base prompt is empty, and tool-usage prose that duplicates tool schemas is trimmed. `BASE_AGENT_PROMPT` is deprecated (removal in `deepagents==0.9.0`) but remains importable and still returns the previous authored prompt verbatim; pass it as `create_deep_agent(system_prompt=BASE_AGENT_PROMPT)` to restore the old behavior. ([#4859](#4859)) ([#4979](#4979)) ([a8d1b32](a8d1b32)) ([d9f54fc](d9f54fc)) * The built-in tool-usage prompt constants `TASK_SYSTEM_PROMPT`, `ASYNC_TASK_SYSTEM_PROMPT`, `SUMMARIZATION_SYSTEM_PROMPT`, `FILESYSTEM_SYSTEM_PROMPT`, and `EXECUTION_SYSTEM_PROMPT` are removed, and the `system_prompt` default on `SubAgentMiddleware`, `AsyncSubAgentMiddleware`, `SummarizationToolMiddleware`, and `create_summarization_tool_middleware` is now `None`, which injects no prose. Pass your own string to restore prompt text. ([#4859](#4859)) ([a8d1b32](a8d1b32)) * `FilesystemBackend` and `LocalShellBackend` now default to `virtual_mode=True`. Filesystem paths are anchored under `root_dir`, `..` traversal is rejected, and paths resolving outside `root_dir` raise `ValueError`. Previously an unspecified `virtual_mode` emitted a deprecation warning and fell back to `False`, where absolute host paths were used as-is and `..` could escape `root_dir`. Pass `virtual_mode=False` explicitly to restore the old filesystem behavior. ([#4541](#4541)) ([540a0fa](540a0fa)) * Agents now see a destructive, recursive `delete` filesystem tool whenever the backend supports it, and filesystem permissions classify `delete` as a write operation — so an existing rule allowing writes to a path also authorizes recursively deleting that subtree unless a narrower deny or interrupt rule covers the target. Because recursive deletes affect descendants, deny and interrupt checks use bulk path overlap instead of exact-path matching. To keep the previous behavior, add a deny or interrupt rule, or omit `delete` from `FilesystemMiddleware(tools=...)`. Missing paths return a not-found error, `CompositeBackend` reports an unsupported-operation error when a routed sub-backend cannot delete, and the tool is hidden from the model entirely when the backend itself does not implement it. ([#3659](#3659)) ([#3691](#3691)) ([#3765](#3765)) ([#3851](#3851)) ([f2a21ec](f2a21ec)) * `write_file` can now create a file if it is missing and replaces it entirely if it already exists, instead of returning a file-exists error. The `write_file` tool description no longer requires reading the file first. There is no "create-only" compatibility mode. Workflows, prompts, tests, or guardrails that relied on the file-exists error to force `edit_file` usage or to protect existing content must omit `write_file`, add explicit permission or interrupt rules, or use `edit_file` where preserving existing content matters. ([#4109](#4109)) ([2506fcc](2506fcc)) * Removed deprecated backend compatibility shims. Callers must pass concrete `BackendProtocol` instances (not factories), configure `StoreBackend` with an explicit `namespace`, and use the current `ls` / `glob` / `grep` / `ReadResult` APIs. ([#4541](#4541)) ([540a0fa](540a0fa)) * The deprecated `files_update` attribute and constructor keyword are removed from `WriteResult` and `EditResult`. Custom backends must stop passing `files_update=`, and callers must stop reading `result.files_update`; state writes are emitted directly by `StateBackend`. ([#4541](#4541)) ([540a0fa](540a0fa)) * Removed the deprecated `BackendProtocol` methods `ls_info`, `als_info`, `glob_info`, `aglob_info`, `grep_raw`, and `agrep_raw`. Use `ls` / `glob` / `grep` and their async counterparts. ([#4541](#4541)) ([540a0fa](540a0fa)) * `SummarizationMiddleware(history_path_prefix=...)` was removed and now raises `TypeError`. Configure `CompositeBackend(artifacts_root=...)` instead. ([#4541](#4541)) ([540a0fa](540a0fa)) * Agent-facing `ls` and `glob` tool output now renders empty results as `No files found` instead of `[]`; direct backend APIs continue to return structured empty `LsResult` and `GlobResult` values. Callers that parse tool output should update those checks. ([#3709](#3709)) ([efafd1e](efafd1e)) * `read_file` no longer renders raw text with a fixed-width `cat -n`-style line-number gutter and tab separator. Line and continuation markers are dynamically aligned and separated from source content by two spaces, and the `LINE_NUMBER_WIDTH` constant is removed from `deepagents.backends.utils` and `deepagents.middleware.filesystem`. Callers that parse raw tool output should update those parsers. ([#4561](#4561)) ([cf057b4](cf057b4)) ### Features * Custom middleware passed to `create_deep_agent(..., middleware=[...])` can replace a default middleware instance when `.name` matches, so defaults such as `SummarizationMiddleware` can be overridden without also excluding the built-in instance. ([#4251](#4251)) ([90c8472](90c8472)) * `FilesystemMiddleware(tools=[...])` accepts a keyword-only allowlist of built-in filesystem tools, typed by the newly exported `FsToolName` literal (`"ls"`, `"read_file"`, `"write_file"`, `"edit_file"`, `"delete"`, `"glob"`, `"grep"`, `"execute"`); pass `"all"` or omit the argument to keep every tool. A list must include `"read_file"` or the constructor raises `ValueError`. Omitted built-in tools are non-executable, and custom user tools are unaffected. ([#4325](#4325)) ([#4698](#4698)) ([704a70d](704a70d)) ([9709525](9709525)) * Shorten LLM-facing descriptions for the `task` tool and filesystem tools (`read_file`, `grep`, `edit_file`, `glob`, `execute`). ([#5009](#5009)) ([761f5f0](761f5f0)) * `GrepResult` and `GlobResult` now carry a `truncated` flag so supporting backends can return valid partial results when a match cap or backend deadline is reached; agent-facing tool output adds a note telling the model to narrow the search. `FilesystemBackend` returns partial `grep` and `glob` results on its backend timeout rather than erroring, while other backend or middleware timeouts may still return errors. Its `glob` also gains brace expansion such as `*.{py,md}` (already supported by the state and store backends). ([#4063](#4063)) ([ef591e7](ef591e7)) * The agent-facing `grep` match cap is configurable: `FilesystemMiddleware(grep_max_count=...)` sets the default (`1000`; `None` disables it) and the model can override it per call through the tool's new `max_count` argument. `grep` / `agrep` on `BackendProtocol` and all built-in backends accept a keyword-only `max_count`. Local ripgrep output is streamed and terminated once the cap is reached. Direct `FilesystemBackend.grep()` callers can request surrounding lines with keyword-only `context_lines`. ([#4570](#4570)) ([#4706](#4706)) ([8e86f5e](8e86f5e)) ([65230df](65230df)) * Paginated built-in `read_file` responses report the returned source-line range and next `offset`; total and remaining line counts are included when the backend knows the file length. Resume offsets remain safe when sandbox or middleware limits shorten the visible page. ([#4540](#4540)) ([8321194](8321194)) * Optional video frame extraction for `read_file`, enabled by the new `deepagents[video]` extra. Video files are sampled into JPEG frames, with `offset` and `limit` interpreted as seconds. Without the extra, existing generic video/file content-block behavior remains. ([#4094](#4094)) ([b927147](b927147)) * `FilesystemMiddleware` can capture oversized `execute` tool output directly inside the sandbox artifact path on compatible, opted-in `BaseSandbox` implementations to reduce round trips; `LangSmithSandbox` opts in by default. ([#4230](#4230)) ([02f5bd7](02f5bd7)) * Automatically enable Fireworks prompt-cache session affinity when a compatible `langchain-fireworks` installation is available. ([#4598](#4598)) ([5d878bf](5d878bf)) * Add a built-in NVIDIA Nemotron 3 Ultra harness profile and NVIDIA NIM app-origin attribution. ([#4192](#4192)) ([#4455](#4455)) ([d5a60ec](d5a60ec)) ([4cb4749](4cb4749)) * `RubricMiddleware` now accepts any positive `max_iterations` cap instead of enforcing a hard upper bound. ([#4405](#4405)) ([d6692a7](d6692a7)) ### Bug Fixes * Keep fields marked with `PrivateStateAttr`, including fields declared through `create_deep_agent(state_schema=...)`, out of subagent inputs and returned parent-state updates. ([#4587](#4587)) ([a4662c0](a4662c0)) * Preserve `ContextT` through the `create_deep_agent(..., middleware=[...])` type annotation so type checkers accept context-aware middleware when a matching `context_schema` is passed. ([#4055](#4055)) ([7be76c7](7be76c7)) * Accept YAML list values as well as comma-separated strings for skill `allowed-tools` frontmatter, and make skill truncation warnings actionable with field name, path, length, configured limit, and impact. ([#4140](#4140)) ([#4141](#4141)) ([d62534c](d62534c)) ([2f5f5b8](2f5f5b8)) * Align filesystem instructions with the tools that remain after allowlist and backend-capability filtering, so agents no longer reference hidden `grep`/`glob` tools or prohibit equivalent shell search when dedicated search tools are unavailable. ([#4920](#4920)) ([#4921](#4921)) ([d3650c7](d3650c7)) ([b65cc00](b65cc00)) * Propagate default-backend failures from `CompositeBackend.ls("/")` and `CompositeBackend.als("/")` instead of returning successful route-only listings. ([#4925](#4925)) ([4c3b166](4c3b166)) * Correct `CompositeBackend.glob` / `CompositeBackend.aglob` routing so explicit default-backend paths such as `/tools` do not also return files from routed backends such as `/memories`. ([#4531](#4531)) ([cbdb0a7](cbdb0a7)) * Propagate default- and routed-backend failures from root `CompositeBackend.glob(..., path=None)` / `aglob(..., path=None)` and `path="/"` searches instead of returning incomplete successful results. ([#4063](#4063)) ([ef591e7](ef591e7)) * Constrain sandbox `glob` and slash-pattern `grep` searches to their declared search root by treating leading `/` as search-root-relative, rejecting `..` traversal segments, and filtering symlink-resolved matches outside the root. ([#4588](#4588)) ([c6c7213](c6c7213)) * Unify `grep(..., glob=...)` include-glob semantics across filesystem and in-memory backends: basename patterns like `*.py` match at any depth, and slash-containing patterns like `src/**/*.py` match relative paths consistently. ([#3936](#3936)) ([feab6e0](feab6e0)) * Improve agent-facing `grep` descriptions and no-match hints to steer regex-looking patterns toward literal searches, route slash-containing sandbox include-globs correctly, and shorten default search timeouts so bad patterns and huge trees return guidance faster. ([#4168](#4168)) ([b1dbf5e](b1dbf5e)) * Align sandbox delete behavior with other backends by returning not-found errors for missing paths, and avoid over-blocking unrelated sibling deletes when deny rules use glob patterns. ([#4321](#4321)) ([d77496b](d77496b)) * Improve rubric grader failure diagnostics with configured model, structured-output strategy, and integer HTTP status when available. ([#4938](#4938)) ([#4967](#4967)) ([f51d3a0](f51d3a0)) ([bca70aa](bca70aa)) * Emit `max_iterations_reached` as the terminal `RubricMiddleware` status when the iteration cap is exhausted, instead of a final `needs_revision` event that will not loop. ([#4406](#4406)) ([a51c8d2](a51c8d2)) * Handle missing async subagent URLs consistently in `check_async_task` and `cancel_async_task`. ([#3967](#3967)) ([b0d92c0](b0d92c0)) ### Performance Improvements * Run LangSmith sandbox commands over the async client. ([#5061](#5061)) ([0d08747](0d08747)) --- _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>

Squashed from langchain-ai#4109. Changes `write_file` from create-only behavior to whole-file replacement. The tool now creates the file when it is missing and replaces the entire file when it already exists. The tool description no longer requires reading the file first, because overwrite is an intentional write mode rather than an error case. BREAKING CHANGE: Agents can now overwrite existing files with `write_file` instead of receiving a file-exists error. Workflows, prompts, tests, or guardrails that relied on that error to force `edit_file` usage or to protect existing content must add explicit permission/HITL checks or use `edit_file` when preserving existing content matters.

> [!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`. Publish reads the merged CHANGELOG via `release.yml`, not this PR description — keep them aligned anyway so the PR stays an accurate historical record for reviewers and anyone returning later._ --- ## [0.7.0](langchain-ai/deepagents@deepagents==0.6.12...deepagents==0.7.0) (2026-07-29) See [the docs](https://docs.langchain.com/oss/python/releases/changelog#deepagents-v0-7-0) for curated release notes. ### ⚠ BREAKING CHANGES * `create_deep_agent` no longer includes `TodoListMiddleware` by default, the `write_todos` tool, `todos` state channel, and todo-planning prompt are now absent. Pass `middleware=[TodoListMiddleware()]` to restore them on the main agent; add it to each `SubAgent`'s middleware to restore them there. ([langchain-ai#4929](langchain-ai#4929)) ([9340518](langchain-ai@9340518)) * Default agent prompts are now lean: the authored base prompt is empty, and tool-usage prose that duplicates tool schemas is trimmed. `BASE_AGENT_PROMPT` is deprecated (removal in `deepagents==0.9.0`) but remains importable and still returns the previous authored prompt verbatim; pass it as `create_deep_agent(system_prompt=BASE_AGENT_PROMPT)` to restore the old behavior. ([langchain-ai#4859](langchain-ai#4859)) ([langchain-ai#4979](langchain-ai#4979)) ([a8d1b32](langchain-ai@a8d1b32)) ([d9f54fc](langchain-ai@d9f54fc)) * The built-in tool-usage prompt constants `TASK_SYSTEM_PROMPT`, `ASYNC_TASK_SYSTEM_PROMPT`, `SUMMARIZATION_SYSTEM_PROMPT`, `FILESYSTEM_SYSTEM_PROMPT`, and `EXECUTION_SYSTEM_PROMPT` are removed, and the `system_prompt` default on `SubAgentMiddleware`, `AsyncSubAgentMiddleware`, `SummarizationToolMiddleware`, and `create_summarization_tool_middleware` is now `None`, which injects no prose. Pass your own string to restore prompt text. ([langchain-ai#4859](langchain-ai#4859)) ([a8d1b32](langchain-ai@a8d1b32)) * `FilesystemBackend` and `LocalShellBackend` now default to `virtual_mode=True`. Filesystem paths are anchored under `root_dir`, `..` traversal is rejected, and paths resolving outside `root_dir` raise `ValueError`. Previously an unspecified `virtual_mode` emitted a deprecation warning and fell back to `False`, where absolute host paths were used as-is and `..` could escape `root_dir`. Pass `virtual_mode=False` explicitly to restore the old filesystem behavior. ([langchain-ai#4541](langchain-ai#4541)) ([540a0fa](langchain-ai@540a0fa)) * Agents now see a destructive, recursive `delete` filesystem tool whenever the backend supports it, and filesystem permissions classify `delete` as a write operation — so an existing rule allowing writes to a path also authorizes recursively deleting that subtree unless a narrower deny or interrupt rule covers the target. Because recursive deletes affect descendants, deny and interrupt checks use bulk path overlap instead of exact-path matching. To keep the previous behavior, add a deny or interrupt rule, or omit `delete` from `FilesystemMiddleware(tools=...)`. Missing paths return a not-found error, `CompositeBackend` reports an unsupported-operation error when a routed sub-backend cannot delete, and the tool is hidden from the model entirely when the backend itself does not implement it. ([langchain-ai#3659](langchain-ai#3659)) ([langchain-ai#3691](langchain-ai#3691)) ([langchain-ai#3765](langchain-ai#3765)) ([langchain-ai#3851](langchain-ai#3851)) ([f2a21ec](langchain-ai@f2a21ec)) * `write_file` can now create a file if it is missing and replaces it entirely if it already exists, instead of returning a file-exists error. The `write_file` tool description no longer requires reading the file first. There is no "create-only" compatibility mode. Workflows, prompts, tests, or guardrails that relied on the file-exists error to force `edit_file` usage or to protect existing content must omit `write_file`, add explicit permission or interrupt rules, or use `edit_file` where preserving existing content matters. ([langchain-ai#4109](langchain-ai#4109)) ([2506fcc](langchain-ai@2506fcc)) * Removed deprecated backend compatibility shims. Callers must pass concrete `BackendProtocol` instances (not factories), configure `StoreBackend` with an explicit `namespace`, and use the current `ls` / `glob` / `grep` / `ReadResult` APIs. ([langchain-ai#4541](langchain-ai#4541)) ([540a0fa](langchain-ai@540a0fa)) * The deprecated `files_update` attribute and constructor keyword are removed from `WriteResult` and `EditResult`. Custom backends must stop passing `files_update=`, and callers must stop reading `result.files_update`; state writes are emitted directly by `StateBackend`. ([langchain-ai#4541](langchain-ai#4541)) ([540a0fa](langchain-ai@540a0fa)) * Removed the deprecated `BackendProtocol` methods `ls_info`, `als_info`, `glob_info`, `aglob_info`, `grep_raw`, and `agrep_raw`. Use `ls` / `glob` / `grep` and their async counterparts. ([langchain-ai#4541](langchain-ai#4541)) ([540a0fa](langchain-ai@540a0fa)) * `SummarizationMiddleware(history_path_prefix=...)` was removed and now raises `TypeError`. Configure `CompositeBackend(artifacts_root=...)` instead. ([langchain-ai#4541](langchain-ai#4541)) ([540a0fa](langchain-ai@540a0fa)) * Agent-facing `ls` and `glob` tool output now renders empty results as `No files found` instead of `[]`; direct backend APIs continue to return structured empty `LsResult` and `GlobResult` values. Callers that parse tool output should update those checks. ([langchain-ai#3709](langchain-ai#3709)) ([efafd1e](langchain-ai@efafd1e)) * `read_file` no longer renders raw text with a fixed-width `cat -n`-style line-number gutter and tab separator. Line and continuation markers are dynamically aligned and separated from source content by two spaces, and the `LINE_NUMBER_WIDTH` constant is removed from `deepagents.backends.utils` and `deepagents.middleware.filesystem`. Callers that parse raw tool output should update those parsers. ([langchain-ai#4561](langchain-ai#4561)) ([cf057b4](langchain-ai@cf057b4)) ### Features * Custom middleware passed to `create_deep_agent(..., middleware=[...])` can replace a default middleware instance when `.name` matches, so defaults such as `SummarizationMiddleware` can be overridden without also excluding the built-in instance. ([langchain-ai#4251](langchain-ai#4251)) ([90c8472](langchain-ai@90c8472)) * `FilesystemMiddleware(tools=[...])` accepts a keyword-only allowlist of built-in filesystem tools, typed by the newly exported `FsToolName` literal (`"ls"`, `"read_file"`, `"write_file"`, `"edit_file"`, `"delete"`, `"glob"`, `"grep"`, `"execute"`); pass `"all"` or omit the argument to keep every tool. A list must include `"read_file"` or the constructor raises `ValueError`. Omitted built-in tools are non-executable, and custom user tools are unaffected. ([langchain-ai#4325](langchain-ai#4325)) ([langchain-ai#4698](langchain-ai#4698)) ([704a70d](langchain-ai@704a70d)) ([9709525](langchain-ai@9709525)) * Shorten LLM-facing descriptions for the `task` tool and filesystem tools (`read_file`, `grep`, `edit_file`, `glob`, `execute`). ([langchain-ai#5009](langchain-ai#5009)) ([761f5f0](langchain-ai@761f5f0)) * `GrepResult` and `GlobResult` now carry a `truncated` flag so supporting backends can return valid partial results when a match cap or backend deadline is reached; agent-facing tool output adds a note telling the model to narrow the search. `FilesystemBackend` returns partial `grep` and `glob` results on its backend timeout rather than erroring, while other backend or middleware timeouts may still return errors. Its `glob` also gains brace expansion such as `*.{py,md}` (already supported by the state and store backends). ([langchain-ai#4063](langchain-ai#4063)) ([ef591e7](langchain-ai@ef591e7)) * The agent-facing `grep` match cap is configurable: `FilesystemMiddleware(grep_max_count=...)` sets the default (`1000`; `None` disables it) and the model can override it per call through the tool's new `max_count` argument. `grep` / `agrep` on `BackendProtocol` and all built-in backends accept a keyword-only `max_count`. Local ripgrep output is streamed and terminated once the cap is reached. Direct `FilesystemBackend.grep()` callers can request surrounding lines with keyword-only `context_lines`. ([langchain-ai#4570](langchain-ai#4570)) ([langchain-ai#4706](langchain-ai#4706)) ([8e86f5e](langchain-ai@8e86f5e)) ([65230df](langchain-ai@65230df)) * Paginated built-in `read_file` responses report the returned source-line range and next `offset`; total and remaining line counts are included when the backend knows the file length. Resume offsets remain safe when sandbox or middleware limits shorten the visible page. ([langchain-ai#4540](langchain-ai#4540)) ([8321194](langchain-ai@8321194)) * Optional video frame extraction for `read_file`, enabled by the new `deepagents[video]` extra. Video files are sampled into JPEG frames, with `offset` and `limit` interpreted as seconds. Without the extra, existing generic video/file content-block behavior remains. ([langchain-ai#4094](langchain-ai#4094)) ([b927147](langchain-ai@b927147)) * `FilesystemMiddleware` can capture oversized `execute` tool output directly inside the sandbox artifact path on compatible, opted-in `BaseSandbox` implementations to reduce round trips; `LangSmithSandbox` opts in by default. ([langchain-ai#4230](langchain-ai#4230)) ([02f5bd7](langchain-ai@02f5bd7)) * Automatically enable Fireworks prompt-cache session affinity when a compatible `langchain-fireworks` installation is available. ([langchain-ai#4598](langchain-ai#4598)) ([5d878bf](langchain-ai@5d878bf)) * Add a built-in NVIDIA Nemotron 3 Ultra harness profile and NVIDIA NIM app-origin attribution. ([langchain-ai#4192](langchain-ai#4192)) ([langchain-ai#4455](langchain-ai#4455)) ([d5a60ec](langchain-ai@d5a60ec)) ([4cb4749](langchain-ai@4cb4749)) * `RubricMiddleware` now accepts any positive `max_iterations` cap instead of enforcing a hard upper bound. ([langchain-ai#4405](langchain-ai#4405)) ([d6692a7](langchain-ai@d6692a7)) ### Bug Fixes * Keep fields marked with `PrivateStateAttr`, including fields declared through `create_deep_agent(state_schema=...)`, out of subagent inputs and returned parent-state updates. ([langchain-ai#4587](langchain-ai#4587)) ([a4662c0](langchain-ai@a4662c0)) * Preserve `ContextT` through the `create_deep_agent(..., middleware=[...])` type annotation so type checkers accept context-aware middleware when a matching `context_schema` is passed. ([langchain-ai#4055](langchain-ai#4055)) ([7be76c7](langchain-ai@7be76c7)) * Accept YAML list values as well as comma-separated strings for skill `allowed-tools` frontmatter, and make skill truncation warnings actionable with field name, path, length, configured limit, and impact. ([langchain-ai#4140](langchain-ai#4140)) ([langchain-ai#4141](langchain-ai#4141)) ([d62534c](langchain-ai@d62534c)) ([2f5f5b8](langchain-ai@2f5f5b8)) * Align filesystem instructions with the tools that remain after allowlist and backend-capability filtering, so agents no longer reference hidden `grep`/`glob` tools or prohibit equivalent shell search when dedicated search tools are unavailable. ([langchain-ai#4920](langchain-ai#4920)) ([langchain-ai#4921](langchain-ai#4921)) ([d3650c7](langchain-ai@d3650c7)) ([b65cc00](langchain-ai@b65cc00)) * Propagate default-backend failures from `CompositeBackend.ls("/")` and `CompositeBackend.als("/")` instead of returning successful route-only listings. ([langchain-ai#4925](langchain-ai#4925)) ([4c3b166](langchain-ai@4c3b166)) * Correct `CompositeBackend.glob` / `CompositeBackend.aglob` routing so explicit default-backend paths such as `/tools` do not also return files from routed backends such as `/memories`. ([langchain-ai#4531](langchain-ai#4531)) ([cbdb0a7](langchain-ai@cbdb0a7)) * Propagate default- and routed-backend failures from root `CompositeBackend.glob(..., path=None)` / `aglob(..., path=None)` and `path="/"` searches instead of returning incomplete successful results. ([langchain-ai#4063](langchain-ai#4063)) ([ef591e7](langchain-ai@ef591e7)) * Constrain sandbox `glob` and slash-pattern `grep` searches to their declared search root by treating leading `/` as search-root-relative, rejecting `..` traversal segments, and filtering symlink-resolved matches outside the root. ([langchain-ai#4588](langchain-ai#4588)) ([c6c7213](langchain-ai@c6c7213)) * Unify `grep(..., glob=...)` include-glob semantics across filesystem and in-memory backends: basename patterns like `*.py` match at any depth, and slash-containing patterns like `src/**/*.py` match relative paths consistently. ([langchain-ai#3936](langchain-ai#3936)) ([feab6e0](langchain-ai@feab6e0)) * Improve agent-facing `grep` descriptions and no-match hints to steer regex-looking patterns toward literal searches, route slash-containing sandbox include-globs correctly, and shorten default search timeouts so bad patterns and huge trees return guidance faster. ([langchain-ai#4168](langchain-ai#4168)) ([b1dbf5e](langchain-ai@b1dbf5e)) * Align sandbox delete behavior with other backends by returning not-found errors for missing paths, and avoid over-blocking unrelated sibling deletes when deny rules use glob patterns. ([langchain-ai#4321](langchain-ai#4321)) ([d77496b](langchain-ai@d77496b)) * Improve rubric grader failure diagnostics with configured model, structured-output strategy, and integer HTTP status when available. ([langchain-ai#4938](langchain-ai#4938)) ([langchain-ai#4967](langchain-ai#4967)) ([f51d3a0](langchain-ai@f51d3a0)) ([bca70aa](langchain-ai@bca70aa)) * Emit `max_iterations_reached` as the terminal `RubricMiddleware` status when the iteration cap is exhausted, instead of a final `needs_revision` event that will not loop. ([langchain-ai#4406](langchain-ai#4406)) ([a51c8d2](langchain-ai@a51c8d2)) * Handle missing async subagent URLs consistently in `check_async_task` and `cancel_async_task`. ([langchain-ai#3967](langchain-ai#3967)) ([b0d92c0](langchain-ai@b0d92c0)) ### Performance Improvements * Run LangSmith sandbox commands over the async client. ([langchain-ai#5061](langchain-ai#5061)) ([0d08747](langchain-ai@0d08747)) --- _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>

> [!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`. Publish reads the merged CHANGELOG via `release.yml`, not this PR description — keep them aligned anyway so the PR stays an accurate historical record for reviewers and anyone returning later._ --- ## [0.7.0](deepagents==0.6.12...deepagents==0.7.0) (2026-07-29) See [the docs](https://docs.langchain.com/oss/python/releases/changelog#deepagents-v0-7-0) for curated release notes. ### ⚠ BREAKING CHANGES * `create_deep_agent` no longer includes `TodoListMiddleware` by default, the `write_todos` tool, `todos` state channel, and todo-planning prompt are now absent. Pass `middleware=[TodoListMiddleware()]` to restore them on the main agent; add it to each `SubAgent`'s middleware to restore them there. ([#4929](#4929)) ([9340518](9340518)) * Default agent prompts are now lean: the authored base prompt is empty, and tool-usage prose that duplicates tool schemas is trimmed. `BASE_AGENT_PROMPT` is deprecated (removal in `deepagents==0.9.0`) but remains importable and still returns the previous authored prompt verbatim; pass it as `create_deep_agent(system_prompt=BASE_AGENT_PROMPT)` to restore the old behavior. ([#4859](#4859)) ([#4979](#4979)) ([a8d1b32](a8d1b32)) ([d9f54fc](d9f54fc)) * The built-in tool-usage prompt constants `TASK_SYSTEM_PROMPT`, `ASYNC_TASK_SYSTEM_PROMPT`, `SUMMARIZATION_SYSTEM_PROMPT`, `FILESYSTEM_SYSTEM_PROMPT`, and `EXECUTION_SYSTEM_PROMPT` are removed, and the `system_prompt` default on `SubAgentMiddleware`, `AsyncSubAgentMiddleware`, `SummarizationToolMiddleware`, and `create_summarization_tool_middleware` is now `None`, which injects no prose. Pass your own string to restore prompt text. ([#4859](#4859)) ([a8d1b32](a8d1b32)) * `FilesystemBackend` and `LocalShellBackend` now default to `virtual_mode=True`. Filesystem paths are anchored under `root_dir`, `..` traversal is rejected, and paths resolving outside `root_dir` raise `ValueError`. Previously an unspecified `virtual_mode` emitted a deprecation warning and fell back to `False`, where absolute host paths were used as-is and `..` could escape `root_dir`. Pass `virtual_mode=False` explicitly to restore the old filesystem behavior. ([#4541](#4541)) ([540a0fa](540a0fa)) * Agents now see a destructive, recursive `delete` filesystem tool whenever the backend supports it, and filesystem permissions classify `delete` as a write operation — so an existing rule allowing writes to a path also authorizes recursively deleting that subtree unless a narrower deny or interrupt rule covers the target. Because recursive deletes affect descendants, deny and interrupt checks use bulk path overlap instead of exact-path matching. To keep the previous behavior, add a deny or interrupt rule, or omit `delete` from `FilesystemMiddleware(tools=...)`. Missing paths return a not-found error, `CompositeBackend` reports an unsupported-operation error when a routed sub-backend cannot delete, and the tool is hidden from the model entirely when the backend itself does not implement it. ([#3659](#3659)) ([#3691](#3691)) ([#3765](#3765)) ([#3851](#3851)) ([f2a21ec](f2a21ec)) * `write_file` can now create a file if it is missing and replaces it entirely if it already exists, instead of returning a file-exists error. The `write_file` tool description no longer requires reading the file first. There is no "create-only" compatibility mode. Workflows, prompts, tests, or guardrails that relied on the file-exists error to force `edit_file` usage or to protect existing content must omit `write_file`, add explicit permission or interrupt rules, or use `edit_file` where preserving existing content matters. ([#4109](#4109)) ([2506fcc](2506fcc)) * Removed deprecated backend compatibility shims. Callers must pass concrete `BackendProtocol` instances (not factories), configure `StoreBackend` with an explicit `namespace`, and use the current `ls` / `glob` / `grep` / `ReadResult` APIs. ([#4541](#4541)) ([540a0fa](540a0fa)) * The deprecated `files_update` attribute and constructor keyword are removed from `WriteResult` and `EditResult`. Custom backends must stop passing `files_update=`, and callers must stop reading `result.files_update`; state writes are emitted directly by `StateBackend`. ([#4541](#4541)) ([540a0fa](540a0fa)) * Removed the deprecated `BackendProtocol` methods `ls_info`, `als_info`, `glob_info`, `aglob_info`, `grep_raw`, and `agrep_raw`. Use `ls` / `glob` / `grep` and their async counterparts. ([#4541](#4541)) ([540a0fa](540a0fa)) * `SummarizationMiddleware(history_path_prefix=...)` was removed and now raises `TypeError`. Configure `CompositeBackend(artifacts_root=...)` instead. ([#4541](#4541)) ([540a0fa](540a0fa)) * Agent-facing `ls` and `glob` tool output now renders empty results as `No files found` instead of `[]`; direct backend APIs continue to return structured empty `LsResult` and `GlobResult` values. Callers that parse tool output should update those checks. ([#3709](#3709)) ([efafd1e](efafd1e)) * `read_file` no longer renders raw text with a fixed-width `cat -n`-style line-number gutter and tab separator. Line and continuation markers are dynamically aligned and separated from source content by two spaces, and the `LINE_NUMBER_WIDTH` constant is removed from `deepagents.backends.utils` and `deepagents.middleware.filesystem`. Callers that parse raw tool output should update those parsers. ([#4561](#4561)) ([cf057b4](cf057b4)) ### Features * Custom middleware passed to `create_deep_agent(..., middleware=[...])` can replace a default middleware instance when `.name` matches, so defaults such as `SummarizationMiddleware` can be overridden without also excluding the built-in instance. ([#4251](#4251)) ([90c8472](90c8472)) * `FilesystemMiddleware(tools=[...])` accepts a keyword-only allowlist of built-in filesystem tools, typed by the newly exported `FsToolName` literal (`"ls"`, `"read_file"`, `"write_file"`, `"edit_file"`, `"delete"`, `"glob"`, `"grep"`, `"execute"`); pass `"all"` or omit the argument to keep every tool. A list must include `"read_file"` or the constructor raises `ValueError`. Omitted built-in tools are non-executable, and custom user tools are unaffected. ([#4325](#4325)) ([#4698](#4698)) ([704a70d](704a70d)) ([9709525](9709525)) * Shorten LLM-facing descriptions for the `task` tool and filesystem tools (`read_file`, `grep`, `edit_file`, `glob`, `execute`). ([#5009](#5009)) ([761f5f0](761f5f0)) * `GrepResult` and `GlobResult` now carry a `truncated` flag so supporting backends can return valid partial results when a match cap or backend deadline is reached; agent-facing tool output adds a note telling the model to narrow the search. `FilesystemBackend` returns partial `grep` and `glob` results on its backend timeout rather than erroring, while other backend or middleware timeouts may still return errors. Its `glob` also gains brace expansion such as `*.{py,md}` (already supported by the state and store backends). ([#4063](#4063)) ([ef591e7](ef591e7)) * The agent-facing `grep` match cap is configurable: `FilesystemMiddleware(grep_max_count=...)` sets the default (`1000`; `None` disables it) and the model can override it per call through the tool's new `max_count` argument. `grep` / `agrep` on `BackendProtocol` and all built-in backends accept a keyword-only `max_count`. Local ripgrep output is streamed and terminated once the cap is reached. Direct `FilesystemBackend.grep()` callers can request surrounding lines with keyword-only `context_lines`. ([#4570](#4570)) ([#4706](#4706)) ([8e86f5e](8e86f5e)) ([65230df](65230df)) * Paginated built-in `read_file` responses report the returned source-line range and next `offset`; total and remaining line counts are included when the backend knows the file length. Resume offsets remain safe when sandbox or middleware limits shorten the visible page. ([#4540](#4540)) ([8321194](8321194)) * Optional video frame extraction for `read_file`, enabled by the new `deepagents[video]` extra. Video files are sampled into JPEG frames, with `offset` and `limit` interpreted as seconds. Without the extra, existing generic video/file content-block behavior remains. ([#4094](#4094)) ([b927147](b927147)) * `FilesystemMiddleware` can capture oversized `execute` tool output directly inside the sandbox artifact path on compatible, opted-in `BaseSandbox` implementations to reduce round trips; `LangSmithSandbox` opts in by default. ([#4230](#4230)) ([02f5bd7](02f5bd7)) * Automatically enable Fireworks prompt-cache session affinity when a compatible `langchain-fireworks` installation is available. ([#4598](#4598)) ([5d878bf](5d878bf)) * Add a built-in NVIDIA Nemotron 3 Ultra harness profile and NVIDIA NIM app-origin attribution. ([#4192](#4192)) ([#4455](#4455)) ([d5a60ec](d5a60ec)) ([4cb4749](4cb4749)) * `RubricMiddleware` now accepts any positive `max_iterations` cap instead of enforcing a hard upper bound. ([#4405](#4405)) ([d6692a7](d6692a7)) ### Bug Fixes * Keep fields marked with `PrivateStateAttr`, including fields declared through `create_deep_agent(state_schema=...)`, out of subagent inputs and returned parent-state updates. ([#4587](#4587)) ([a4662c0](a4662c0)) * Preserve `ContextT` through the `create_deep_agent(..., middleware=[...])` type annotation so type checkers accept context-aware middleware when a matching `context_schema` is passed. ([#4055](#4055)) ([7be76c7](7be76c7)) * Accept YAML list values as well as comma-separated strings for skill `allowed-tools` frontmatter, and make skill truncation warnings actionable with field name, path, length, configured limit, and impact. ([#4140](#4140)) ([#4141](#4141)) ([d62534c](d62534c)) ([2f5f5b8](2f5f5b8)) * Align filesystem instructions with the tools that remain after allowlist and backend-capability filtering, so agents no longer reference hidden `grep`/`glob` tools or prohibit equivalent shell search when dedicated search tools are unavailable. ([#4920](#4920)) ([#4921](#4921)) ([d3650c7](d3650c7)) ([b65cc00](b65cc00)) * Propagate default-backend failures from `CompositeBackend.ls("/")` and `CompositeBackend.als("/")` instead of returning successful route-only listings. ([#4925](#4925)) ([4c3b166](4c3b166)) * Correct `CompositeBackend.glob` / `CompositeBackend.aglob` routing so explicit default-backend paths such as `/tools` do not also return files from routed backends such as `/memories`. ([#4531](#4531)) ([cbdb0a7](cbdb0a7)) * Propagate default- and routed-backend failures from root `CompositeBackend.glob(..., path=None)` / `aglob(..., path=None)` and `path="/"` searches instead of returning incomplete successful results. ([#4063](#4063)) ([ef591e7](ef591e7)) * Constrain sandbox `glob` and slash-pattern `grep` searches to their declared search root by treating leading `/` as search-root-relative, rejecting `..` traversal segments, and filtering symlink-resolved matches outside the root. ([#4588](#4588)) ([c6c7213](c6c7213)) * Unify `grep(..., glob=...)` include-glob semantics across filesystem and in-memory backends: basename patterns like `*.py` match at any depth, and slash-containing patterns like `src/**/*.py` match relative paths consistently. ([#3936](#3936)) ([feab6e0](feab6e0)) * Improve agent-facing `grep` descriptions and no-match hints to steer regex-looking patterns toward literal searches, route slash-containing sandbox include-globs correctly, and shorten default search timeouts so bad patterns and huge trees return guidance faster. ([#4168](#4168)) ([b1dbf5e](b1dbf5e)) * Align sandbox delete behavior with other backends by returning not-found errors for missing paths, and avoid over-blocking unrelated sibling deletes when deny rules use glob patterns. ([#4321](#4321)) ([d77496b](d77496b)) * Improve rubric grader failure diagnostics with configured model, structured-output strategy, and integer HTTP status when available. ([#4938](#4938)) ([#4967](#4967)) ([f51d3a0](f51d3a0)) ([bca70aa](bca70aa)) * Emit `max_iterations_reached` as the terminal `RubricMiddleware` status when the iteration cap is exhausted, instead of a final `needs_revision` event that will not loop. ([#4406](#4406)) ([a51c8d2](a51c8d2)) * Handle missing async subagent URLs consistently in `check_async_task` and `cancel_async_task`. ([#3967](#3967)) ([b0d92c0](b0d92c0)) ### Performance Improvements * Run LangSmith sandbox commands over the async client. ([#5061](#5061)) ([0d08747](0d08747)) --- _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>

Nishitha M (imnishitha) added 13 commits June 10, 2026 17:00

add atomic delete dir support for FS

a936a6e

renamed delete_file tool to delete

77787ef

lint fixes

cf3b9d1

optimised delete dir

b6304b9

add more context in denying patterns

a51e55e

delete dir support in all backends

e997f1e

moved _find_delete_deny_patternout of class

f12b530

batch delete in store

cb25c85

batch test

c34109f

address pr comments

6260f39

Merge branch 'v0.7' of https://github.com/langchain-ai/deepagents int…

6bddae5

…o v0.7

Support overwrite in write_file tool

e5c14e4

add tests

5280d7b

github-actions Bot added deepagents Related to the `deepagents` SDK / agent harness feature New feature/enhancement or request for one internal User is a member of the `langchain-ai` GitHub organization size: S 50-199 LOC labels Jun 22, 2026

Nishitha M (imnishitha) marked this pull request as ready for review June 22, 2026 15:32

Nishitha M (imnishitha) requested review from ccurme (ccurme) and Eugene Yurtsev (eyurtsev) June 22, 2026 15:32

Nishitha M (imnishitha) marked this pull request as draft June 22, 2026 15:34

Nishitha M (imnishitha) changed the title ~~Feat(sdk): allow write_file to overwrite existing files~~ feat(sdk): allow write_file to overwrite existing files Jun 22, 2026

open-swe Bot reviewed Jun 22, 2026

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Comment thread libs/deepagents/deepagents/middleware/filesystem.py

Nishitha M (imnishitha) added 2 commits June 22, 2026 13:53

changes to state

20c5986

lint fix

11a7f5f

Nishitha M (imnishitha) marked this pull request as ready for review June 22, 2026 17:56

add evals for overwrite behaviour

f70ce7c

Nishitha M (imnishitha) requested review from Mason Daugherty (mdrxy) and vivek (vtrivedy) as code owners June 23, 2026 17:04

github-actions Bot added evals Evaluation suite and Harbor integration size: M 200-499 LOC and removed size: S 50-199 LOC labels Jun 23, 2026

lint fix

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ccurme (ccurme) previously approved these changes Jun 23, 2026

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address comments

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Nishitha M (imnishitha) dismissed ccurme (ccurme)’s stale review via faed53b June 23, 2026 21:22

update tool description

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Eugene Yurtsev (eyurtsev) approved these changes Jun 24, 2026

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Nishitha M (imnishitha) merged commit 77a4631 into v0.7 Jun 24, 2026
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Nishitha M (imnishitha) deleted the nm/change-overwrite-behaviour branch June 24, 2026 17:31

Mason Daugherty (mdrxy) added a commit that referenced this pull request Jun 24, 2026

feat(sdk): allow write_file to overwrite existing files

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Squashed from #4109.

Mason Daugherty (mdrxy) added a commit that referenced this pull request Jun 24, 2026

feat(sdk): allow write_file to overwrite existing files

50d2d57

Squashed from #4109.

Mason Daugherty (mdrxy) added a commit that referenced this pull request Jun 24, 2026

feat(sdk): allow write_file to overwrite existing files

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Squashed from #4109.

Mason Daugherty (mdrxy) added a commit that referenced this pull request Jun 25, 2026

feat(sdk): allow write_file to overwrite existing files

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Squashed from #4109.

Nishitha M (imnishitha) mentioned this pull request Jul 6, 2026

docs: note write_file overwrite behavior [deepagents PR #4109] langchain-ai/docs#4746

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Mason Daugherty (mdrxy) mentioned this pull request Jul 29, 2026

release(deepagents): 0.7.0 #4297

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feat(sdk): allow `write_file` to overwrite existing files - #4109

feat(sdk): allow `write_file` to overwrite existing files#4109
Nishitha M (imnishitha) merged 19 commits into
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		@@ -446,26 +446,21 @@ def write(
		file_path: str,
		content: str,

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Nishitha M (imnishitha) commented Jun 22, 2026

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Merging this PR will improve performance by 61.55%

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codspeed-hq Bot commented Jun 23, 2026 •

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