Add a JSON-RPC server mode to F# Interactive - #20396

Merged

T-Gro merged 30 commits into

dotnet:mainfrom

xperiandri:fsi-json-rpc

Sep 21, 2026

Commits on Sep 21, 2026

Add a JSON-RPC server mode to F# Interactive

xperiandri
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claude
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22f4d23
Point the release notes entry at the pull request

xperiandri
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claude
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f76451c
Trim the comments to the repository style rule

xperiandri
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claude
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43524ba
Run fantomas on the files it actually covers

xperiandri
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claude
committed
833c01d
Exempt StreamJsonRpc's serialization stack from Microsoft signing

xperiandri
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claude
committed
3a5fb8e
Exempt the new test project from the embedded-pdb check

xperiandri
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claude
committed
decf7c1
Register the new test project with TestSplit.fsx

xperiandri
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claude
committed
666d54d
Add the new test project to VisualFSharp.slnx too

xperiandri
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claude
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dfc0b89
Run the interactive server tests on desktop fsi too

xperiandri
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claude
committed
9299f03
Surface what StreamJsonRpc the session loaded on a method-not-found failure

xperiandri
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claude
committed
71a7b30
Stop --realsig- from hiding FsiRpcTarget's methods from StreamJsonRpc

xperiandri
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claude
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2318726
Keep the execution queue off the wire and move the directory on it

xperiandri
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claude
committed
337991c
Interpolate strings and mark up the doc comments in the new code

xperiandri
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claude
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f2c92ec
Use .NET format specifiers for the generated names in the tests

xperiandri
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claude
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1532d0e
Drop the % specifiers from the interpolated strings

xperiandri
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11e9159
Shorten the test pipe name to fit the macOS socket path limit

xperiandri
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claude
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27d7ce3
Strip the macOS /private prefix before comparing working directories

xperiandri
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claude
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8d26619
Address FSI JSON-RPC review findings

xperiandri
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Copilot
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ddea77a
Return evaluated FSI values over JSON-RPC

xperiandri
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Copilot
committed
c22be51
Fix remaining FSI JSON-RPC review issues

xperiandri
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Copilot
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57625b8
Format FSI server fixup

xperiandri
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Copilot
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f8f30bf
Watch FSI host before pipe connection

xperiandri
and
Copilot
committed
70fce7d
Register FSI RPC handlers explicitly

xperiandri
and
Copilot
committed
6447908
Evaluate every interaction EvalInteraction is given and expose the server options on the session

xperiandri
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claude
committed
7292816
Admit only the current user to the fsi server pipe and let the session split and print

xperiandri
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claude
committed
6689126
Ship the server's assembly closure in Microsoft.FSharp.Compiler, not in the VS setup

xperiandri
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claude
committed
0a63a81
Compare the reported framework and file name ordinally

xperiandri
and
claude
committed
cf9482c
Harden FSI JSON-RPC protocol handling

authored and
xperiandri
committed
c3057e6
Compact FSI JSON-RPC remediation

authored and
xperiandri
committed
737f671
Keep the last value EvalInteraction produced, and let the harness lose the pipe race

xperiandri
and
claude
committed
68e6f0a

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Add a JSON-RPC server mode to F# Interactive - #20396

Add a JSON-RPC server mode to F# Interactive#20396
T-Gro merged 30 commits into
dotnet:mainfrom
xperiandri:fsi-json-rpc

Commits on Sep 21, 2026

Add a JSON-RPC server mode to F# Interactive

Point the release notes entry at the pull request

Trim the comments to the repository style rule

Run fantomas on the files it actually covers

Exempt StreamJsonRpc's serialization stack from Microsoft signing

Exempt the new test project from the embedded-pdb check

Register the new test project with TestSplit.fsx

Add the new test project to VisualFSharp.slnx too

Run the interactive server tests on desktop fsi too

Surface what StreamJsonRpc the session loaded on a method-not-found failure

Stop --realsig- from hiding FsiRpcTarget's methods from StreamJsonRpc

Keep the execution queue off the wire and move the directory on it

Interpolate strings and mark up the doc comments in the new code

Use .NET format specifiers for the generated names in the tests

Drop the % specifiers from the interpolated strings

Shorten the test pipe name to fit the macOS socket path limit

Strip the macOS /private prefix before comparing working directories

Address FSI JSON-RPC review findings

Return evaluated FSI values over JSON-RPC

Fix remaining FSI JSON-RPC review issues

Format FSI server fixup

Watch FSI host before pipe connection

Register FSI RPC handlers explicitly

Evaluate every interaction EvalInteraction is given and expose the server options on the session

Admit only the current user to the fsi server pipe and let the session split and print

Ship the server's assembly closure in Microsoft.FSharp.Compiler, not in the VS setup

Compare the reported framework and file name ordinally

Harden FSI JSON-RPC protocol handling

Compact FSI JSON-RPC remediation

Keep the last value EvalInteraction produced, and let the harness lose the pipe race