clai: Add ability to continue last conversation #2257

uriyyo · 2025-07-19T11:07:18Z

Hi,

Thanks for clai, I'm using it all the time 🙌

One minor feature that I miss is the ability to continue the last conversation, cause my usage looks like this:

clai "first question"
clai "next question that basically related to first one"

So now it will be possible:

clai "first question"
clai -c "next question that basically related to first one"

I'm not sure if -c is a good option name, as it is usually used for configuration, so maybe -r/--resume would be a better option. I will be happy to update the implementation with better naming.

hyperlint-ai · 2025-07-19T11:07:31Z

PR Change Summary

Added the ability to continue the last conversation in the clai CLI tool.

Introduced the '-c' option to continue the last conversation instead of starting a new one.
Updated usage instructions in the README to reflect the new option.
Provided a suggestion for renaming the option to '-r/--resume' for clarity.

Modified Files

clai/README.md

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uriyyo · 2025-07-20T20:40:23Z

I don't know why coverage is not 100%(

Kludex · 2025-07-21T09:11:08Z

Hi @uriyyo 👋 Good to see you here. :)

Instead of just continuing the last conversation, can we select the session we want to continue? It would be nice to have a drop-down where the user could select the session. We can use the prompt-toolkit package for it.

uriyyo · 2025-07-21T19:00:59Z

👋 Good to see you here. :)

@Kludex Long time no see, good to see you again!

fswair · 2025-07-22T13:26:19Z

Can we extend this with: #1981 @uriyyo @Kludex

uriyyo · 2025-07-26T10:56:29Z

Instead of just continuing the last conversation, can we select the session we want to continue? It would be nice to have a drop-down where the user could select the session. We can use the prompt-toolkit package for it.

@Kludex Sounds interesting, any suggestions on how it should look like?

I imagine adding input query slugify that will assign session specific slug, and then you can continue session based on a generated slug.

For instance if we are doing query like this:

clai "How to start thread in python?"

Slug might look like this - python-start-thread (eventually it will be generated by LLM).

And then you can continue this session:

clai "and how can I start 10 threads" --session python-start-thread

Also, it makes sense to add /sessions and maybe /session [session] commands for interactive mode?

Where:
/sessions - show list of available sessions.
/session - show info about the current session.
/session $session-name - switch to a specific session.

I still would love to have ability to continue just last conversation, but it can be implemented around sessions.

This reverts commit 909cabd.

Kludex · 2025-08-14T12:31:11Z

Instead of just continuing the last conversation, can we select the session we want to continue? It would be nice to have a drop-down where the user could select the session. We can use the prompt-toolkit package for it.

@Kludex Sounds interesting, any suggestions on how it should look like?

I imagine adding input query slugify that will assign session specific slug, and then you can continue session based on a generated slug.

For instance if we are doing query like this:
clai "How to start thread in python?"
Slug might look like this - python-start-thread (eventually it will be generated by LLM).

And then you can continue this session:
clai "and how can I start 10 threads" --session python-start-thread
Also, it makes sense to add /sessions and maybe /session [session] commands for interactive mode?

Where: /sessions - show list of available sessions. /session - show info about the current session. /session $session-name - switch to a specific session.

I still would love to have ability to continue just last conversation, but it can be implemented around sessions.

I'm sorry. I thought I had replied.

I think we can store the session with an uuid as file name, and then when resuming, we should see the first message truncated as part of that selection. This selection should be using prompt-toolkit.

Kludex · 2025-08-14T12:31:31Z

Feel free to reach me on our Slack, in case I take more than a day to reply.

DouweM · 2025-09-30T21:29:18Z

@uriyyo Are you still interested in working on this?

uriyyo · 2025-09-30T21:30:54Z

@DouweM Yup, I will try to wrap it all this week

github-actions · 2025-11-02T14:00:47Z

This PR is stale, and will be closed in 3 days if no reply is received.

uriyyo · 2025-11-03T18:43:48Z

Hi all, sorry for no response. Does it still make sense for me to work on this feature? If yes, I will try to do it ASAP

DouweM · 2025-11-03T21:23:12Z

@uriyyo Yes go for it!

Copilot

Pull Request Overview

This PR adds a new feature to continue the last conversation in the Pydantic AI CLI instead of starting fresh each time. The key functionality enables users to use the -c or --continue flag to resume their previous conversation.

Added conversation persistence to JSON files in the .pydantic-ai directory
Implemented -c/--continue CLI flag to resume previous conversations
Added error handling for corrupted conversation files

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 9 comments.

File	Description
pydantic_ai_slim/pydantic_ai/_cli.py	Implemented conversation storage/loading functions and integrated them into the CLI workflow with the new `--continue` flag
tests/test_cli.py	Added tests for the continue conversation feature and updated existing test assertions to include the new `history` parameter
clai/README.md	Updated CLI usage documentation to include the new `-c`/`--continue` flag option

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tests/test_cli.py

pydantic_ai_slim/pydantic_ai/_cli.py

Copilot

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

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pydantic_ai_slim/pydantic_ai/_cli.py

DouweM · 2025-11-04T18:28:44Z

pydantic_ai_slim/pydantic_ai/_cli.py

        assert agent_run.result is not None
-        return agent_run.result.all_messages()
+        result_messages = agent_run.result.all_messages()
+        store_last_conversation(result_messages, config_dir)


Can we restructure this a bit to not repeat these 2 lines?

Makes sense, tried to fix it

pydantic_ai_slim/pydantic_ai/_cli.py

uriyyo · 2025-11-04T19:34:46Z

Hi @DouweM,

I tried to add fixes. Could you please take a look? If everything is good, I will add tests.

DouweM · 2025-11-04T22:56:57Z

clai/README.md

  -l, --list-models     List all available models and exit
  -t [CODE_THEME], --code-theme [CODE_THEME]
                        Which colors to use for code, can be "dark", "light" or any theme from pygments.org/styles/. Defaults to "dark" which works well on dark terminals.
+  -c [CONTINUE_], --continue [CONTINUE_]


In the readme, this should really say PATH rather than CONTINUE_

DouweM · 2025-11-04T22:57:06Z

clai/README.md

  -t [CODE_THEME], --code-theme [CODE_THEME]
                        Which colors to use for code, can be "dark", "light" or any theme from pygments.org/styles/. Defaults to "dark" which works well on dark terminals.
+  -c [CONTINUE_], --continue [CONTINUE_]
+                        Continue last conversation, if any, instead of starting a new one.


Needs updating now that we support an optional path

DouweM · 2025-11-04T22:57:19Z

clai/README.md

                        Which colors to use for code, can be "dark", "light" or any theme from pygments.org/styles/. Defaults to "dark" which works well on dark terminals.
+  -c [CONTINUE_], --continue [CONTINUE_]
+                        Continue last conversation, if any, instead of starting a new one.
+  --store STORE         Store the last conversation to the specified path instead of the default location.


PATH would be better than STORE here as well

DouweM · 2025-11-04T22:58:08Z

pydantic_ai_slim/pydantic_ai/_cli.py

+        '--continue',
+        nargs='?',
+        dest='continue_',
+        const=str(PYDANTIC_AI_HOME / LAST_CONVERSATION_FILENAME),


Hmm so we're not respecting the config_dir anymore? Could we fix that

Kludex requested review from Kludex July 21, 2025 09:08

Kludex self-assigned this Jul 21, 2025

uriyyo force-pushed the feature/clai-continue-conversation branch from 00b521a to 2990a68 Compare July 26, 2025 09:25

uriyyo force-pushed the feature/clai-continue-conversation branch from 2990a68 to 8884141 Compare August 5, 2025 08:52

uriyyo added 6 commits August 12, 2025 19:33

clai: Add ability to continue last conversation

bf5d828

Fix tests

1278090

Add tests

18ff146

Fix corrupted tests

f37042a

try to fix coverage

b4fa954

Revert "try to fix coverage"

cf3b691

This reverts commit 909cabd.

uriyyo force-pushed the feature/clai-continue-conversation branch from 8884141 to cf3b691 Compare August 12, 2025 17:33

DouweM added the awaiting author revision label Sep 30, 2025

github-actions bot added the Stale label Nov 2, 2025

DouweM removed the Stale label Nov 3, 2025

merge with main

c487d58

Copilot AI review requested due to automatic review settings November 3, 2025 21:44

Copilot AI reviewed Nov 3, 2025

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uriyyo added 5 commits November 3, 2025 22:56

Use message_history arg for run_chat; fix typos in tests

c680761

Use read_bytes() to load conversation JSON

526069f

Patch PYDANTIC_AI_HOME with tmp_path in test fixture

a08b5ed

Remove unused PYDANTIC_AI_HOME import from tests

8ae1e62

Add type annotations to empty_last_conversation_path fixture

1e40988

uriyyo requested a review from Copilot November 3, 2025 22:45

Copilot AI reviewed Nov 3, 2025

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pydantic_ai_slim/pydantic_ai/_cli.py Outdated Show resolved Hide resolved

tests: use Path.unlink(missing_ok=True) to remove file safely

6dbe144

DouweM requested changes Nov 4, 2025

View reviewed changes

Support custom conversation load/store paths and optional --continue

6db9293

uriyyo requested a review from DouweM November 4, 2025 19:33

DouweM requested changes Nov 4, 2025

View reviewed changes

clai: Add ability to continue last conversation #2257

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clai: Add ability to continue last conversation #2257

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uriyyo commented Jul 19, 2025

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