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feat(code): /tools slash command - #4649

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feat(code): /tools slash command#4649
Mason Daugherty (mdrxy) merged 8 commits into
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open-swe/tools-slash-command

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@mdrxy Mason Daugherty (mdrxy) commented Jul 10, 2026 •
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Deep Agents Code now supports /tools, which lists the built-in and MCP tools available to the current agent.

Adds an interactive /tools slash command to the deepagents-code TUI so users can see the tools available to the current agent, grouped into built-in tools and tools from each MCP server. MCP servers that are disabled, need login, or failed to load are shown separately instead of disappearing from the list.

For managed sessions, built-in tools are enumerated off the UI thread with a credential-free agent compile. For preconfigured local agents, /tools inspects the active graph directly so custom tool sets remain authoritative. When a custom or remote agent cannot be inspected, the command explains that limitation rather than incorrectly reporting that no tools are available.

MCP entries reuse the metadata loaded for the running agent instead of starting discovery inside Textual's live event loop. If /mcp configuration changes are waiting for a reconnect, /tools keeps using the pre-change snapshot so its output continues to match the tools the agent can currently invoke.

The catalog is rendered as a chat message, like /tokens, and is discoverable through /help, command completion, and a startup tip.

Made by Open SWE

References

@mdrxy @open-swe
feat(code): /tools slash command
fefc783 
Add an interactive `/tools` slash command to the `deepagents-code` TUI that
lists the tools available to the agent, grouped by source (built-in tools
first, then per-MCP-server tools) plus any MCP servers configured with no
tools. It is the interactive counterpart to `dcode tools list`.

Built-in tools are enumerated off the UI thread via `asyncio.to_thread`; MCP
data reuses the already-loaded server info rather than re-discovering, since
the discovery path uses `asyncio.run`, which cannot run inside Textual's live
event loop. A shared `split_mcp_server_info` helper keeps the CLI and TUI
paths DRY.

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
@github-actions github-actions Bot added dcode Related to `deepagents-code` feature New feature/enhancement or request for one internal User is a member of the `langchain-ai` GitHub organization open-swe size: M 200-499 LOC labels Jul 10, 2026
@mdrxy
Mason Daugherty (mdrxy) marked this pull request as ready for review July 12, 2026 00:13
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Open SWE Review found 1 potential issue.

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Comment thread libs/code/deepagents_code/app.py Outdated
@github-actions github-actions Bot added size: L 500-999 LOC and removed size: M 200-499 LOC labels Jul 13, 2026
open-swe[bot]
open-swe Bot reviewed Jul 13, 2026
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Open SWE Review found 1 potential issue.

Open in Web • View Open SWE trace

Comment thread libs/code/deepagents_code/app.py Outdated
@github-actions github-actions Bot added size: XL 1000+ LOC and removed size: L 500-999 LOC labels Jul 13, 2026
@mdrxy
Mason Daugherty (mdrxy) merged commit b1600a8 into main Jul 13, 2026
50 of 53 checks passed
@mdrxy
Mason Daugherty (mdrxy) deleted the open-swe/tools-slash-command branch July 13, 2026 07:13
@github-actions github-actions Bot mentioned this pull request Jul 13, 2026
Merged
Mason Daugherty (mdrxy) added a commit that referenced this pull request Jul 13, 2026
@github-actions @mdrxy
release(deepagents-code): 0.1.37 (#4619)
def6369 
> [!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._

---


##
[0.1.37](deepagents-code==0.1.36...deepagents-code==0.1.37)
(2026-07-13)

### Features

* Add Meta model provider
([#4650](#4650))
([70829c5](70829c5))
* Set `prompt_cache_key` for OpenAI models
([#4632](#4632))
([8cf57ac](8cf57ac))
* Support Fireworks `/routers` model ids
([#4591](#4591))
([1c08d27](1c08d27))
* `/model` Ctrl+N toggle for names vs raw specs
([#4592](#4592))
([518c322](518c322))
* `/tools` slash command
([#4649](#4649))
([b1600a8](b1600a8))
* Add `-s` alias for `--skill`
([#4620](#4620))
([c9b7ac2](c9b7ac2))
* Configurable chat cursor style
([#4687](#4687))
([a22484b](a22484b))
* Expand environment variables in MCP config
([#4681](#4681))
([4f5d7be](4f5d7be))
* Hide diff widget for credential files
([#4593](#4593))
([4c49a24](4c49a24))
* In-app Debug Console
([#4564](#4564))
([4f94a30](4f94a30))
* Offer abort in `/threads` cwd-switch prompt
([#4583](#4583))
([aaeac99](aaeac99))
* Resume threads in-TUI with `/threads -r [ID]`
([#4609](#4609))
([d442673](d442673))
* Show `(debug enabled)` on splash when `DEEPAGENTS_CODE_DEBUG` is set
([#4584](#4584))
([f10b877](f10b877))

### Bug Fixes

* Avoid repeated startup auto-update stalls
([#4648](#4648))
([12a9c9d](12a9c9d))
* Infer Fireworks provider from qualified model IDs
([#4594](#4594))
([4d2aa8a](4d2aa8a))
* Capture input typed before TUI startup
([#4684](#4684))
([ef9a4a8](ef9a4a8))
* Detach owned `langgraph dev` server from terminal
([#4642](#4642))
([d1f3afe](d1f3afe))
* Infer additional model providers
([#4675](#4675))
([4ceed24](4ceed24))
* Preserve `Ctrl+D` deletion in non-empty input
([#4626](#4626))
([306bd89](306bd89))
* Quit with `Ctrl+D` at end of prompt
([#4678](#4678))
([2f8c111](2f8c111))
* Reap langgraph dev server when startup is cancelled
([#4629](#4629))
([904ff05](904ff05))
* Reject `--auto-approve` in headless mode
([#4617](#4617))
([997be16](997be16))
* Route explicit `--stdin` + `--skill` to headless path
([#4611](#4611))
([724e24a](724e24a))
* Skip Esc prompt-restore once output generation begins
([#4582](#4582))
([14f384f](14f384f))
* Remove misleading agent names from help
([#4671](#4671))
([ac15732](ac15732))
* Support plain `exit` quit command
([#4543](#4543))
([e6f10a1](e6f10a1))
* Sync `ask_user` active-question highlight with focus
([#4599](#4599))
([e4c29b5](e4c29b5))
* Wrap MCP viewer navigation
([#4677](#4677))
([cffc732](cffc732))

### Performance Improvements

* Load MCP servers concurrently during graph build
([#4659](#4659))
([c5345cc](c5345cc))

---

_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>
Marcelo5444 pushed a commit to Marcelo5444/deepagents that referenced this pull request Jul 30, 2026
@mdrxy @open-swe
feat(code): /tools slash command (langchain-ai#4649)
b9eaafe 
Deep Agents Code now supports `/tools`, which lists the built-in and MCP
tools available to the current agent.

---

Adds an interactive `/tools` slash command to the `deepagents-code` TUI
so users can see the tools available to the current agent, grouped into
built-in tools and tools from each MCP server. MCP servers that are
disabled, need login, or failed to load are shown separately instead of
disappearing from the list.

For managed sessions, built-in tools are enumerated off the UI thread
with a credential-free agent compile. For preconfigured local agents,
`/tools` inspects the active graph directly so custom tool sets remain
authoritative. When a custom or remote agent cannot be inspected, the
command explains that limitation rather than incorrectly reporting that
no tools are available.

MCP entries reuse the metadata loaded for the running agent instead of
starting discovery inside Textual's live event loop. If `/mcp`
configuration changes are waiting for a reconnect, `/tools` keeps using
the pre-change snapshot so its output continues to match the tools the
agent can currently invoke.

The catalog is rendered as a chat message, like `/tokens`, and is
discoverable through `/help`, command completion, and a startup tip.

Made by [Open
SWE](https://openswe.vercel.app/agents/626ca1ec-726e-58e8-7dae-4e85363c953d)

## References

- Plan:
https://openswe.vercel.app/agents/626ca1ec-726e-58e8-7dae-4e85363c953d/plan

---------

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
Marcelo5444 pushed a commit to Marcelo5444/deepagents that referenced this pull request Jul 30, 2026
@github-actions @mdrxy
release(deepagents-code): 0.1.37 (langchain-ai#4619)
bdfa735 
> [!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._

---


##
[0.1.37](langchain-ai/deepagents@deepagents-code==0.1.36...deepagents-code==0.1.37)
(2026-07-13)

### Features

* Add Meta model provider
([langchain-ai#4650](langchain-ai#4650))
([70829c5](langchain-ai@70829c5))
* Set `prompt_cache_key` for OpenAI models
([langchain-ai#4632](langchain-ai#4632))
([8cf57ac](langchain-ai@8cf57ac))
* Support Fireworks `/routers` model ids
([langchain-ai#4591](langchain-ai#4591))
([1c08d27](langchain-ai@1c08d27))
* `/model` Ctrl+N toggle for names vs raw specs
([langchain-ai#4592](langchain-ai#4592))
([518c322](langchain-ai@518c322))
* `/tools` slash command
([langchain-ai#4649](langchain-ai#4649))
([b1600a8](langchain-ai@b1600a8))
* Add `-s` alias for `--skill`
([langchain-ai#4620](langchain-ai#4620))
([c9b7ac2](langchain-ai@c9b7ac2))
* Configurable chat cursor style
([langchain-ai#4687](langchain-ai#4687))
([a22484b](langchain-ai@a22484b))
* Expand environment variables in MCP config
([langchain-ai#4681](langchain-ai#4681))
([4f5d7be](langchain-ai@4f5d7be))
* Hide diff widget for credential files
([langchain-ai#4593](langchain-ai#4593))
([4c49a24](langchain-ai@4c49a24))
* In-app Debug Console
([langchain-ai#4564](langchain-ai#4564))
([4f94a30](langchain-ai@4f94a30))
* Offer abort in `/threads` cwd-switch prompt
([langchain-ai#4583](langchain-ai#4583))
([aaeac99](langchain-ai@aaeac99))
* Resume threads in-TUI with `/threads -r [ID]`
([langchain-ai#4609](langchain-ai#4609))
([d442673](langchain-ai@d442673))
* Show `(debug enabled)` on splash when `DEEPAGENTS_CODE_DEBUG` is set
([langchain-ai#4584](langchain-ai#4584))
([f10b877](langchain-ai@f10b877))

### Bug Fixes

* Avoid repeated startup auto-update stalls
([langchain-ai#4648](langchain-ai#4648))
([12a9c9d](langchain-ai@12a9c9d))
* Infer Fireworks provider from qualified model IDs
([langchain-ai#4594](langchain-ai#4594))
([4d2aa8a](langchain-ai@4d2aa8a))
* Capture input typed before TUI startup
([langchain-ai#4684](langchain-ai#4684))
([ef9a4a8](langchain-ai@ef9a4a8))
* Detach owned `langgraph dev` server from terminal
([langchain-ai#4642](langchain-ai#4642))
([d1f3afe](langchain-ai@d1f3afe))
* Infer additional model providers
([langchain-ai#4675](langchain-ai#4675))
([4ceed24](langchain-ai@4ceed24))
* Preserve `Ctrl+D` deletion in non-empty input
([langchain-ai#4626](langchain-ai#4626))
([306bd89](langchain-ai@306bd89))
* Quit with `Ctrl+D` at end of prompt
([langchain-ai#4678](langchain-ai#4678))
([2f8c111](langchain-ai@2f8c111))
* Reap langgraph dev server when startup is cancelled
([langchain-ai#4629](langchain-ai#4629))
([904ff05](langchain-ai@904ff05))
* Reject `--auto-approve` in headless mode
([langchain-ai#4617](langchain-ai#4617))
([997be16](langchain-ai@997be16))
* Route explicit `--stdin` + `--skill` to headless path
([langchain-ai#4611](langchain-ai#4611))
([724e24a](langchain-ai@724e24a))
* Skip Esc prompt-restore once output generation begins
([langchain-ai#4582](langchain-ai#4582))
([14f384f](langchain-ai@14f384f))
* Remove misleading agent names from help
([langchain-ai#4671](langchain-ai#4671))
([ac15732](langchain-ai@ac15732))
* Support plain `exit` quit command
([langchain-ai#4543](langchain-ai#4543))
([e6f10a1](langchain-ai@e6f10a1))
* Sync `ask_user` active-question highlight with focus
([langchain-ai#4599](langchain-ai#4599))
([e4c29b5](langchain-ai@e4c29b5))
* Wrap MCP viewer navigation
([langchain-ai#4677](langchain-ai#4677))
([cffc732](langchain-ai@cffc732))

### Performance Improvements

* Load MCP servers concurrently during graph build
([langchain-ai#4659](langchain-ai#4659))
([c5345cc](langchain-ai@c5345cc))

---

_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>
@mdrxy Mason Daugherty (mdrxy) mentioned this pull request Aug 26, 2026
Merged
Mason Daugherty (mdrxy) added a commit to langchain-ai/docs that referenced this pull request Aug 27, 2026
@mdrxy @open-swe
docs: add Deep Agents Code diagnostic commands
38dea31 
Document the /context-doctor, /tools, and /cost slash commands in the
Deep Agents Code command workflow pages:

- New 'Diagnose and audit a session' section in cli-reference.mdx with
  verified example output, /context and dcode doctor relationships, and
  version notes (0.1.62, 0.1.37, 0.1.51).
- Slash-command list entries and a context-window usage pointer in
  quickstart.mdx.

Refs langchain-ai/deepagents#5830, langchain-ai/deepagents#4649,
langchain-ai/deepagents#5036.

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
Mason Daugherty (mdrxy) added a commit to langchain-ai/docs that referenced this pull request Aug 27, 2026
@mdrxy @open-swe
docs: add Deep Agents Code diagnostic commands (#5693)
f7508fe 
## Summary

Documents the Deep Agents Code diagnostic slash commands shipped in
langchain-ai/deepagents#5830 (`/context-doctor`, 0.1.62),
langchain-ai/deepagents#4649 (`/tools`, 0.1.37), and
langchain-ai/deepagents#5036 (`/cost`, 0.1.51).

- **`cli-reference.mdx`**: new "Diagnose and audit a session" section
covering `/tools` (active tool set, unavailable MCP servers,
tool-shaping flags), `/context-doctor` (injected-context audit,
estimated tokens, unexpected growth, relationship to `/context` and
`dcode doctor`), and `/cost` (estimated thread cost, checkpoint
persistence, genai-prices source, display-only caveat). Each carries its
minimum-version `<Note>`.
- **`quickstart.mdx`**: slash-command list entries plus a pointer from
"Inspect context-window usage"; refreshes `/clear` and `/force-clear`
descriptions and current shortcuts (`Ctrl+G` editor, `Ctrl+T` subagent
panel, `Shift+Tab` approval cycle).

Example output was generated by exercising the real rendering code
(`context_doctor.py`, `tool_catalog.py`, `_session_stats.py`) against
the current source at langchain-ai/deepagents@9f3a1dd38; command names,
descriptions, and visibility match `command_registry.py` and the
generated `COMMANDS.md`.

## Verification

- `vale` 3.9.6 (scoped `lint_prose` on both changed files): 0 errors, 0
warnings, 0 suggestions.
- `mint broken-links` and `mint broken-links --check-anchors` on a fresh
`pipeline build`: no broken links.
- 241 related deepagents unit tests pass (`test_context_doctor.py`,
`test_cost_tracking.py`, `test_command_registry.py`,
`test_tool_catalog.py`).

AI agent involvement: authored by Open SWE.

## Stack

This is stack 3/4 and targets #5692 (`mdrxy/docs/dcode-approval-goals`).

Made by [Open
SWE](https://openswe.vercel.app/agents/90221b46-f65a-5c24-95e1-bb8ae62dadd9)

---------

Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
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