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chore: Optimize build task inputs in turbo.json#6349

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ChristopherTrimboli merged 7 commits intodevelopfrom
odilitime-patch-1
Jan 19, 2026
Merged

chore: Optimize build task inputs in turbo.json#6349
ChristopherTrimboli merged 7 commits intodevelopfrom
odilitime-patch-1

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@odilitime odilitime commented Jan 9, 2026

Add explicit inputs to build task for cache optimization

Risks

Low

Background

What does this PR do?

Make turbo rebuild less

What kind of change is this?

Improvements (misc. changes to existing features)

Why are we doing this? Any context or related work?

My turbo was eating over 40gb of ram on some changes

Documentation changes needed?

My changes do not require a change to the project documentation.


Note

Improves Turborepo caching by narrowing cache invalidation to build-relevant files and adding shared config dependencies.

  • Adds globalDependencies for tsconfig.json and tsconfig.build.template.json
  • Specifies explicit inputs for build, @elizaos/client#build, @elizaos/cli#build, and @elizaos/server#build (e.g., src/**, package.json, tsconfig*.json, build.ts, vite.config.ts, postcss.config.js, tailwind.config.ts, bunfig.toml, tsconfig.build.json, ../../build-utils.ts, plus index.html for client)
  • Leaves outputs unchanged (dist/**) and retains existing task dependencies and env vars

Written by Cursor Bugbot for commit b5509c3. This will update automatically on new commits. Configure here.

Greptile Overview

Greptile Overview

Greptile Summary

Optimizes Turbo build cache by adding explicit inputs to narrow cache invalidation to build-relevant files. This prevents unnecessary rebuilds when documentation, tests, or other non-source files change, addressing the author's RAM consumption issue. The change includes helpful inline comments explaining the optimization rationale.

Confidence Score: 3/5

  • Safe to merge with suggested additions to prevent cache misses
  • The optimization is sound and addresses a real performance issue. However, the inputs list is incomplete—missing bunfig.toml and eslint.config.js could cause cache hits when these files change, leading to stale builds. These files exist across multiple packages and can affect build behavior. With the suggested additions, this would be a solid optimization.
  • turbo.json needs additional build-relevant config files in the inputs list

Important Files Changed

File Analysis

Filename Score Overview
turbo.json 3/5 Adds explicit inputs to build task to optimize cache invalidation; missing bunfig.toml and eslint.config.js which can affect builds

Sequence Diagram

sequenceDiagram
    participant Dev as Developer
    participant Turbo as Turbo Cache
    participant Build as Build Process
    
    Dev->>Turbo: "Change README.md"
    Note over Turbo: Before: Hash ALL files<br/>Cache MISS → Rebuild
    Dev->>Turbo: "Change README.md (with inputs)"
    Note over Turbo: After: Hash only inputs<br/>Cache HIT → Skip rebuild
    
    Dev->>Turbo: "Change src/index.ts"
    Turbo->>Build: "Cache MISS"
    Build-->>Turbo: "Build complete"
    Turbo-->>Dev: "New cache entry"
Loading

Important Files Changed

File Analysis

Filename Score Overview
turbo.json 3/5 Adds explicit inputs to build task to optimize cache invalidation; missing bunfig.toml and eslint.config.js which can affect builds

Sequence Diagram

sequenceDiagram
    participant Dev as Developer
    participant Turbo as Turbo Cache
    participant Build as Build Process
    
    Dev->>Turbo: "Change README.md"
    Note over Turbo: Before: Hash ALL files<br/>Cache MISS → Rebuild
    Dev->>Turbo: "Change README.md (with inputs)"
    Note over Turbo: After: Hash only inputs<br/>Cache HIT → Skip rebuild
    
    Dev->>Turbo: "Change src/index.ts"
    Turbo->>Build: "Cache MISS"
    Build-->>Turbo: "Build complete"
    Turbo-->>Dev: "New cache entry"
Loading

Summary by CodeRabbit

  • Chores
    • Optimized build caching configuration to improve build performance and reduce unnecessary cache invalidation across the monorepo.

✏️ Tip: You can customize this high-level summary in your review settings.

Add explicit inputs to build task for cache optimization
Copilot AI review requested due to automatic review settings January 9, 2026 00:52
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Walkthrough

Turborepo configuration update adding global TypeScript dependencies and explicit inputs arrays to build task definitions across multiple packages to optimize cache invalidation behavior and prevent unnecessary rebuilds.

Changes

Cohort / File(s) Summary
Turborepo Cache Configuration
turbo.json
Added globalDependencies array specifying tsconfig.json and tsconfig.build.template.json. Augmented default build task with comprehensive inputs array covering source files, config files (tsconfig*.json, vite.config.ts, postcss.config.js, tailwind.config.ts), and shared utilities. Applied similar inputs patterns to @elizaos/client#build, @elizaos/cli#build, and @elizaos/server#build tasks with package-specific inclusions (index.html for client build). Retained outputs: ["dist/**"] across all tasks. Includes inline comments explaining cache invalidation rationale.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🔧 Dependencies declared, with global might,
Turborepo's cache optimized just right,
TypeScript configs now truly aligned,
Rebuilds prevented, clean builds designed,
Configuration sharpened—no more wasted build time!

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Title check ✅ Passed The title accurately describes the main change: optimizing build task inputs in turbo.json to reduce cache invalidation and rebuild frequency.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description check ✅ Passed PR description covers main requirements with clear context, though some optional sections are incomplete or minimal.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch odilitime-patch-1

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@odilitime odilitime changed the title Optimize build task inputs in turbo.json chore: Optimize build task inputs in turbo.json Jan 9, 2026
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Pull request overview

This PR optimizes Turbo's build cache by adding explicit inputs to the build task configuration. The change aims to reduce memory consumption and prevent unnecessary rebuilds by limiting cache invalidation to only build-relevant files.

  • Adds explicit inputs list to the generic build task in turbo.json
  • Includes explanatory comments about why explicit inputs improve cache hit rates
  • Limits inputs to source files and build configuration files

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1 file reviewed, 1 comment

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Co-authored-by: odi <odi@elizalabs.ai>
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Actionable comments posted: 0

🧹 Nitpick comments (2)
turbo.json (2)

46-54: Remove redundant tsconfig.build.json in CLI and server inputs.

Both @elizaos/cli#build (line 51) and @elizaos/server#build (line 65) explicitly list tsconfig.build.json, which is redundant with the tsconfig*.json glob pattern. Apply the same cleanup as suggested for the main build task.

♻️ Remove redundant patterns
     "@elizaos/cli#build": {
       "dependsOn": ["^build"],
       "env": ["LOG_LEVEL"],
       "inputs": [
         "src/**",
         "package.json",
         "tsconfig*.json",
         "build.ts",
-        "tsconfig.build.json",
         "bunfig.toml",
         "../../build-utils.ts"
       ],
       "outputs": ["dist/**"]
     },
     "@elizaos/server#build": {
       "dependsOn": ["@elizaos/client#build", "^build"],
       "env": ["LOG_LEVEL"],
       "inputs": [
         "src/**",
         "package.json",
         "tsconfig*.json",
         "build.ts",
-        "tsconfig.build.json",
         "bunfig.toml",
         "../../build-utils.ts"
       ],
       "outputs": ["dist/**"]
     },

Also applies to: 60-68


12-24: Remove redundant pattern.

The tsconfig*.json glob pattern on line 15 already matches tsconfig.build.json, making the explicit entry on line 22 redundant. The ../../build-utils.ts path is correct—the file exists at the repository root and packages are nested 2 levels deep.

♻️ Remove redundant pattern
       "inputs": [
         "src/**",
         "package.json",
         "tsconfig*.json",
         "build.ts",
         "tsup.config.ts",
         "vite.config.ts",
         "postcss.config.js",
         "tailwind.config.ts",
         "bunfig.toml",
-        "tsconfig.build.json",
         "../../build-utils.ts"
       ],
📜 Review details

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 6231b5a and 1db6842.

📒 Files selected for processing (1)
  • turbo.json
🧰 Additional context used
📓 Path-based instructions (1)
**/*.{ts,tsx,js,jsx,json,md}

📄 CodeRabbit inference engine (AGENTS.md)

Use Prettier for formatting with 2 spaces, semicolons, single quotes, trailing comma es5, width 100

Files:

  • turbo.json
🧠 Learnings (17)
📓 Common learnings
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: packages/project-starter/CLAUDE.md:0-0
Timestamp: 2025-11-25T23:34:42.065Z
Learning: Applies to packages/project-starter/**/tsconfig.json : Configure TypeScript compiler options for ElizaOS project compatibility and development experience
Learnt from: standujar
Repo: elizaOS/eliza PR: 5848
File: packages/core/build.ts:142-146
Timestamp: 2025-08-30T13:49:37.549Z
Learning: In elizaos/core package, the root dist/index.d.ts file is automatically generated by tsc when running `tsc --project tsconfig.declarations.json` with multiple entry points (src/index.node.ts and src/index.browser.ts). This generates generic type definitions that work for all environments, and manually overwriting this file would break browser support.
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to packages/core/src/**/*.{ts,tsx} : Use packages/core imports for internal references within core
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: packages/plugin-starter/CLAUDE.md:0-0
Timestamp: 2025-11-25T23:34:18.553Z
Learning: Applies to packages/plugin-starter/**/*.ts : Use TypeScript as the language for plugin development (Required)
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: CLAUDE.md:0-0
Timestamp: 2025-12-29T07:56:33.799Z
Learning: Applies to **/*.{ts,tsx} : Never use `npm` or `pnpm` - always use `bun` for all package management and script execution
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to packages/*/src/**/*.{ts,tsx} : Use elizaos/core imports in package code for referencing core types and utilities
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to **/*.{ts,tsx} : Don't comment change notes

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:34:42.065Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: packages/project-starter/CLAUDE.md:0-0
Timestamp: 2025-11-25T23:34:42.065Z
Learning: Applies to packages/project-starter/**/tsconfig.json : Configure TypeScript compiler options for ElizaOS project compatibility and development experience

Applied to files:

  • turbo.json
📚 Learning: 2025-08-30T13:49:37.549Z
Learnt from: standujar
Repo: elizaOS/eliza PR: 5848
File: packages/core/build.ts:142-146
Timestamp: 2025-08-30T13:49:37.549Z
Learning: In elizaos/core package, the root dist/index.d.ts file is automatically generated by tsc when running `tsc --project tsconfig.declarations.json` with multiple entry points (src/index.node.ts and src/index.browser.ts). This generates generic type definitions that work for all environments, and manually overwriting this file would break browser support.

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to **/*.{ts,tsx} : Never omit code or add an '// ...' as it risks breaking the codebase

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to **/*.{ts,tsx} : Follow existing patterns in codebase

Applied to files:

  • turbo.json
📚 Learning: 2025-12-29T07:56:33.799Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: CLAUDE.md:0-0
Timestamp: 2025-12-29T07:56:33.799Z
Learning: Applies to **/*.{ts,tsx} : Never use `npm` or `pnpm` - always use `bun` for all package management and script execution

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to packages/core/src/**/*.{ts,tsx} : Use packages/core imports for internal references within core

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:34:55.605Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-11-25T23:34:55.605Z
Learning: Applies to **/*.{ts,tsx} : Prefer Bun APIs; avoid Node-only modules where Bun equivalents exist

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to packages/*/src/**/*.{ts,tsx} : Use elizaos/core imports in package code for referencing core types and utilities

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to packages/core/**/*.{ts,tsx} : Packages/core cannot depend on other packages - all dependencies must flow inward to core only

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to **/*.{ts,tsx} : Use TypeScript for all code

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:33:40.411Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: .cursorrules:0-0
Timestamp: 2025-11-25T23:33:40.411Z
Learning: Applies to **/*.{ts,tsx} : Comment complex logic

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:34:55.605Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-11-25T23:34:55.605Z
Learning: Applies to **/*.test.{ts,tsx} : Name test files with *.test.ts(x) suffix and place near sources

Applied to files:

  • turbo.json
📚 Learning: 2025-12-29T07:56:33.799Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: CLAUDE.md:0-0
Timestamp: 2025-12-29T07:56:33.799Z
Learning: Applies to **/*.{ts,tsx} : Ensure code is free of TypeScript errors or warnings - code must compile without issues

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:34:42.065Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: packages/project-starter/CLAUDE.md:0-0
Timestamp: 2025-11-25T23:34:42.065Z
Learning: Applies to packages/project-starter/**/package.json : Define development scripts for common workflows: 'start' (production start), 'dev' (development mode with hot reloading), 'test' (run test suite), 'build' (compile TypeScript), and 'clean' (remove build artifacts)

Applied to files:

  • turbo.json
📚 Learning: 2025-11-25T23:34:55.605Z
Learnt from: CR
Repo: elizaOS/eliza PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-11-25T23:34:55.605Z
Learning: Applies to **/*.{ts,tsx,js,jsx} : Use ESLint for linting, with Prettier also used in client package

Applied to files:

  • turbo.json
🔇 Additional comments (2)
turbo.json (2)

30-40: Client inputs look good; consider removing redundancy.

The frontend-specific configs (Vite, PostCSS, Tailwind, index.html) are appropriate for the client package. However, the same redundancy issue applies here: tsconfig*.json on line 33 already covers all TypeScript config files, so other package-specific build tasks don't need explicit tsconfig.build.json entries (though this task doesn't have one, which is correct).


3-3: Verified: globalDependencies files exist and are properly configured.

Both tsconfig.json and tsconfig.build.template.json exist at repository root and are correctly listed as global dependencies. This ensures cache invalidation across all tasks when these root-level TypeScript configs change—good practice for a monorepo.

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I'll analyze this and get back to you.

"bunfig.toml",
"tsconfig.build.json",
"../../build-utils.ts"
],
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Missing .js config file variants causes stale builds

Medium Severity

The inputs array only includes tailwind.config.ts but several packages in the repository (plugin-starter, project-starter, project-tee-starter) use tailwind.config.js instead. These packages have build scripts and are included in the turbo build. When tailwind.config.js is modified, Turborepo won't detect the change and will serve stale cached builds with outdated CSS styles. The same pattern applies to other config variants - vite.config.js isn't tracked (only .ts), though currently all vite configs use .ts.

Fix in Cursor Fix in Web

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claude bot commented Jan 16, 2026

Claude finished @odilitime's task in 1m 5s —— View job


PR Review: Turbo Build Cache Optimization

  • Analyze PR changes and context
  • Review turbo.json modifications
  • Check for issues flagged by other reviewers
  • Provide final review feedback

✅ Looks Good Overall

This PR properly addresses the Turbo cache optimization goal. The key improvements in the latest version:

  1. globalDependencies added for root tsconfig files ✓
  2. Package-specific inputs for client, cli, server builds ✓
  3. build-utils.ts included in all relevant inputs ✓
  4. bunfig.toml added ✓

💡 Minor Suggestions (Non-blocking)

1. Missing tailwind.config.js variant (line 20)

The generic build task only includes tailwind.config.ts, but these packages use .js:

  • packages/plugin-starter/tailwind.config.js
  • packages/project-starter/tailwind.config.js
  • packages/project-tee-starter/tailwind.config.js

Consider using a glob pattern:

"tailwind.config.*",

2. Redundant tsconfig.build.json (lines 22, 51, 65)

The glob tsconfig*.json already matches tsconfig.build.json. These explicit entries are redundant but harmless.


Summary

Approve with minor suggestions. The PR successfully narrows build inputs to improve cache hit rates. The core optimization is sound and addresses the high memory usage issue. The remaining .js config file variant is a minor edge case that affects only starter/template packages.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

Bugbot Autofix is OFF. To automatically fix reported issues with Cloud Agents, enable Autofix in the Cursor dashboard.

@@ -1,24 +1,71 @@
{
"$schema": "https://turborepo.org/schema.json",
"globalDependencies": ["tsconfig.json", "tsconfig.build.template.json"],
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Non-existent file in globalDependencies configuration

Medium Severity

The globalDependencies array references tsconfig.build.template.json, but this file does not exist in the repository. Searches across the codebase found no file with this name, and no other configuration extends or references it. This could cause Turbo to behave unexpectedly - either silently ignoring the missing file (hiding a configuration error) or potentially causing cache inconsistencies if the file is created later.

Fix in Cursor Fix in Web

@ChristopherTrimboli ChristopherTrimboli merged commit b5bdb28 into develop Jan 19, 2026
17 of 19 checks passed
@ChristopherTrimboli ChristopherTrimboli deleted the odilitime-patch-1 branch January 19, 2026 19:48
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6 participants