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Skill 10 of 12
Update the primary SDK dependencies of harness packages. Use when asked to update the harness SDKs or harness adapter dependencies.
1 minute · 274 words · 4 sections
Install
npx skills add vercel/ai --skill update-harness-dependenciesnpx skills add vercel/aiThe first command installs just this skill, by the name in its SKILL.md; the second installs the whole repository.
The harness adapters are all the packages/harness-* packages. They each rely on one or more third-party packages for the respective harness’s primary SDK. It is crucial to keep those dependencies up to date.
Below you find the instructions on how to update those packages to their latest versions, while adhering to the minimum release age defined in pnpm-workspace.yaml.
Run the following commands to update each harness’s primary SDK packages.
devDependencies, while the actual package versions used as dependencies are only relevant to the harness’s bridge itself.dependencies.Run these commands exactly as below:
# ACP
pnpm --filter harness-acp update @agentclientprotocol/sdk @modelcontextprotocol/sdk --latest --lockfile-only
# Claude Code
pnpm --filter harness-claude-code update @anthropic-ai/claude-agent-sdk @modelcontextprotocol/sdk --latest --lockfile-only
# Cline
pnpm --filter harness-cline update @cline/agents --latest --lockfile-only
# Codex
pnpm --filter harness-codex update @openai/codex-sdk --latest --lockfile-only
# Deep Agents
pnpm --filter harness-deepagents update @langchain/core @langchain/langgraph deepagents langchain langsmith --latest --lockfile-only
# GitHub Copilot
pnpm --filter harness-github-copilot update @github/copilot --latest --lockfile-only
# Grok Build
pnpm --filter harness-grok-build update @xai-official/grok --latest --lockfile-only
# OpenCode
pnpm --filter harness-opencode update @opencode-ai/sdk --latest --lockfile-only
# Pi
pnpm --filter harness-pi update @earendil-works/pi-coding-agent --latest --lockfile-onlyFor the bridge dependencies of bridge harnesses, you must additionally run the following commands. It is important to specify the config.minimumReleaseAge flag in accordance with what pnpm-workspace.yaml defines, because for these commands the --ignore-workspace flag is needed.
Run these commands exactly as below:
# ACP
pnpm --dir packages/harness-acp/src/v1/bridge update @agentclientprotocol/sdk @modelcontextprotocol/sdk --latest --ignore-workspace --config.minimumReleaseAge=4320
# Claude Code
pnpm --dir packages/harness-claude-code/src/bridge update @anthropic-ai/claude-agent-sdk @anthropic-ai/claude-code @modelcontextprotocol/sdk --latest --ignore-workspace --config.minimumReleaseAge=4320
# Codex
pnpm --dir packages/harness-codex/src/bridge update @openai/codex-sdk --latest --ignore-workspace --config.minimumReleaseAge=4320
# Deep Agents
pnpm --dir packages/harness-deepagents/src/bridge update @langchain/anthropic @langchain/core @langchain/langgraph deepagents langchain langsmith --latest --ignore-workspace --config.minimumReleaseAge=4320
# GitHub Copilot
pnpm --dir packages/harness-github-copilot/src/bridge update @github/copilot --latest --ignore-workspace --config.minimumReleaseAge=4320
# Grok Build
pnpm --dir packages/harness-grok-build/src/bridge update @agentclientprotocol/sdk @modelcontextprotocol/sdk @xai-official/grok --latest --ignore-workspace --config.minimumReleaseAge=4320
# OpenCode
pnpm --dir packages/harness-opencode/src/bridge update @opencode-ai/sdk opencode-ai --latest --ignore-workspace --config.minimumReleaseAge=4320For bridge CLI packages that require install scripts, also update the exact
version in the bridge’s pnpm-workspace.yaml allowBuilds entry to match the
new version in its package.json:
packages/harness-claude-code/src/bridge/pnpm-workspace.yamlpackages/harness-github-copilot/src/bridge/pnpm-workspace.yamlpackages/harness-grok-build/src/bridge/pnpm-workspace.yamlpackages/harness-opencode/src/bridge/pnpm-workspace.yamlThe following harness adapters use an unversioned installer script instead of an NPM package for their SDK / CLI and therefore can be ignored:
packages/harness-cursorpackages/harness-fxCheck the package.json files in examples/harness-e2e-next and examples/harness-e2e-tui for any of the above SDKs they depend on. Those dependencies need to be updated to match the exact version used in the packages as well.
Run the verification script to ensure all relevant dependency versions are aligned:
./tools/verify-harness-adapter-deps.mjsIf this script shows errors, you must address them, then rerun the verification script until it passes.
main, last pushed 24 September 2026.SKILL.md, not by matching a directory convention. One layout observed: skills/*/SKILL.md./vercel/ai.md, and each skill at its own .md URL.