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Remove the coder entity#4272

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KyleAMathews merged 11 commits intomainfrom
remove-coder
May 4, 2026
Merged

Remove the coder entity#4272
KyleAMathews merged 11 commits intomainfrom
remove-coder

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@KyleAMathews KyleAMathews commented May 4, 2026

Summary

Remove the coder entity (coding-session) — the feature that wrapped Claude Code / Codex CLI sessions as durable entities with live event mirroring.

Approach

Complete removal across three packages:

  • @electric-ax/agents — entity definition (coding-session.ts), tools (spawn_coder, prompt_coder), bootstrap registration, and the agent-session-protocol dependency
  • @electric-ax/agents-runtime — types (CodingSessionHandle, CodingSessionMeta, CodingSessionEventRow, etc.), constants (CODING_SESSION_*), observation source helpers, and the useCodingAgent context method
  • @electric-ax/agents-server-ui — dedicated view components (CodingSessionView, CodingSessionTimeline, CodingSessionSpawnForm), the useCodingSession hook, and conditional rendering in the router/new-session page

Horton's system prompt and tool list are updated to no longer reference coders.

Verification

pnpm --filter @electric-ax/agents-runtime exec tsc --noEmit
pnpm --filter @electric-ax/agents exec tsc --noEmit
pnpm --filter @electric-ax/agents-server-ui exec tsc --noEmit

All three pass cleanly.

Non-goals

  • Migration path for existing coder entities in production streams (there are none in prod yet)
  • Replacing the coder functionality with an alternative

🤖 Generated with Claude Code

@KyleAMathews @claude
Remove the coder entity (coding-session)
d06a017 
The coder entity wrapped Claude Code / Codex CLI sessions as durable
entities. Remove it entirely: entity definition, tools (spawn_coder,
prompt_coder), runtime types and context-factory method, UI components
(CodingSessionView, CodingSessionTimeline, CodingSessionSpawnForm),
hooks, and the agent-session-protocol dependency.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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codecov Bot commented May 4, 2026 •
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Codecov Report

❌ Patch coverage is 0% with 125 lines in your changes missing coverage. Please review.
✅ Project coverage is 63.06%. Comparing base (65f0cf0) to head (6084ba9).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines Patch % Lines
...ckages/agents-server-ui/src/components/Sidebar.tsx 0.00% 46 Missing ⚠️
...ackages/agents-server-ui/src/hooks/useProjects.tsx 0.00% 44 Missing ⚠️
...agents-server-ui/src/components/NewSessionPage.tsx 0.00% 35 Missing ⚠️
Additional details and impacted files 
@@            Coverage Diff             @@
##             main    #4272      +/-   ##
==========================================
+ Coverage   60.07%   63.06%   +2.99%     
==========================================
  Files          49      184     +135     
  Lines        6329    19932   +13603     
  Branches     1887     4962    +3075     
==========================================
+ Hits         3802    12571    +8769     
- Misses       2526     7358    +4832     
- Partials        1        3       +2
Flag Coverage Δ
packages/agents 61.19% <ø> (+1.94%) ⬆️
packages/agents-runtime 79.23% <ø> (?)
packages/agents-server 66.03% <ø> (ø)
packages/agents-server-ui 1.64% <0.00%> (?)
packages/electric-ax 38.59% <ø> (ø)
packages/experimental 87.73% <ø> (?)
packages/react-hooks 86.48% <ø> (?)
packages/start 82.83% <ø> (?)
packages/typescript-client 94.27% <ø> (?)
packages/y-electric 56.05% <ø> (?)
typescript 63.06% <0.00%> (+2.99%) ⬆️
unit-tests 63.06% <0.00%> (+2.99%) ⬆️

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KyleAMathews and others added 2 commits May 4, 2026 16:15
@KyleAMathews @claude
docs: add projects feature design spec
597d49e 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews @claude
docs: remove all coder entity references
aae8ee2 
Remove the dedicated coder docs page and clean up references in the
quickstart, usage overview, handler context reference, embedded builtins,
writing handlers, clients & react, horton entity docs, index page, and
sidebar navigation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
KyleAMathews and others added 3 commits May 4, 2026 16:17
@KyleAMathews @claude
chore: regenerate pnpm-lock.yaml
558373a 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews @claude
docs: update projects spec with Codex-style hero UI
a501611 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews @claude
chore(agents-server): add start script with cross-env and tsx
82e7ceb 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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KyleAMathews and others added 5 commits May 4, 2026 16:25
@KyleAMathews @claude
docs: add projects implementation plan
a3b6741 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews @claude
chore: gitignore .opentrace artifacts
8b6136a 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews @claude
chore: add agents-server to changeset
c161298 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews @claude
feat(agents-server-ui): add projects support and sidebar grouping
747473e 
Add useProjects hook for project management with localStorage
persistence, update Sidebar to group entities by project, and
include related App/CSS changes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews @claude
chore: remove docs/superpowers planning docs
6084ba9 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@KyleAMathews KyleAMathews merged commit a3cee92 into main May 4, 2026
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@KyleAMathews KyleAMathews deleted the remove-coder branch May 4, 2026 22:39
@andresberrios
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andresberrios commented May 6, 2026 •
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Hello @KyleAMathews! Why exactly was this removed? It's exactly what I was looking for.
Asking because I think that using the Claude subscription billing is only allowed through the Claude Code CLI and not when using the Claude Agent SDK. Not sure if that's what this got replaced with. Please correct me if I'm wrong.

@KyleAMathews
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KyleAMathews commented May 6, 2026

We're focusing on making Horton a great coding agent https://x.com/kylemathews/status/2051723417821512082

We'll get back to building a bridge but that's not the immediate priority.

If you have a codex account, Horton works great with it

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