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Agent skill

Upstream Sync

by evloghq in evloghq/evlog

Check the eve and Vercel Connect ecosystem for updates and new features, keep the app current with them, and replace workarounds with the real improvements.

MITAuto-check passedDevelopment

Install Upstream Sync

skills CLI
$ npx skills add evloghq/evlog --skill upstream-sync -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install evloghq/evlog upstream-sync --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/evloghq/evlog.git skills-src && mkdir -p .claude/skills && cp -r skills-src/apps/evi/agent/skills/upstream-sync .claude/skills/upstream-sync && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
upstream-sync
GitHub stars
1.9k
Token cost
~856 tokens
SKILL.md length
418 words
Files
1
Skills in repo
22
Repo updated
First seen
Licence
MIT

At a glance

Check the eve and Vercel Connect ecosystem for updates and new features, keep the app current with them, and replace workarounds with the real improvements.

  • Works in 4 steps: What changed upstream → Map onto this repo → Deliver the PRs → …
  • Development work in your project
  • SKILL.md covers 1. What changed upstream, 2. Map onto this repo, 3. Deliver the PRs and 4. Track what needs a human in…, plus 1 more section
  • Calls pnpm and npm

What it does

Upstream Sync is an agent skill from evloghq/evlog. Check the eve and Vercel Connect ecosystem for updates and new features, keep the app current with them, and replace workarounds with the real improvements. Load this when the upstream-sync schedule fires, or when asked to check for eve or @vercel/connect updates.

Its SKILL.md is about 860 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. It works with Vercel, GitHub, npm and pnpm. The repository describes itself as: Digging through logs is not observability. It's hope — wide events, structured errors, TypeScript-first, every runtime. The licence is MIT.

When your agent uses it

  • Development work in your project

Example prompts

  • “/upstream-sync”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. What changed upstream
  2. Map onto this repo
  3. Deliver the PRs
  4. Track what needs a human in Linear

What it can do on your machine

Read from SKILL.md and the folder at commit 59a105f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • pnpm
    • npm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use pnpm and npm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Upstream Sync loads about 856 tokens when it runs. Until then it costs about 70 tokens; SKILL.md has 418 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~70
When it runs · the whole SKILL.md, loaded when a task matches
~856

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from evloghq/evlog at commit 59a105f, republished under its MIT licence (© evloghq). 418 words, ~856 tokens.

Download SKILL.mdSave it as .claude/skills/upstream-sync/SKILL.md (or your agent's skills folder).
name
upstream-sync
description
Check the eve and Vercel Connect ecosystem for updates and new features, keep the app current with them, and replace workarounds with the real improvements. Load this when the upstream-sync schedule fires, or when asked to check for eve or @vercel/connect updates.

Upstream sync

The frameworks this app runs on move independently: eve and its satellites (@agent-browser/eve, @github-tools/eve-extension) from vercel/eve, and @vercel/connect from vercel/vercel. The twice-weekly run checks them, updates the app where warranted, and opens ready PRs only after verification. The PRs are the deliverable; nothing merges without a human.

1. What changed upstream

  • Installed versions: apps/evi/package.json.
  • Latest published versions: npm view <pkg> version from the sandbox, or the npm registry page, for eve, @agent-browser/eve, @github-tools/eve-extension, @vercel/connect.
  • Release notes: GitHub releases on vercel/eve, vercel-labs/agent-browser, vercel-labs/github-tools, and the packages/connect changelog in vercel/vercel. For behavior changes, eve.dev/docs and the installed node_modules/eve/docs.

2. Map onto this repo

  • eve APIs: everything under agent/ (channels, connections, extensions, schedules, sandbox.ts). node_modules/eve/docs is the framework reference.
  • @vercel/connect/eve: channels/slack.ts, channels/photon.ts, channels/linear.ts, connections/vercel.ts, lib/github/credentials.ts.
  • @agent-browser/eve: sandbox.ts, extensions/browser.ts. @github-tools/eve-extension: extensions/github.ts.
  • packages/evlog/src/eve: the evlog integration for eve. A change there is user-facing and needs a changeset.
  • docs/notes.md: the "eve", "github-tools" and "Vercel Connect" sections record workarounds. A newer version that fixes one means the workaround goes and the note goes with it.

3. Deliver the PRs

  • One ready PR per coherent change: a dependency bump with its adaptation, or a workaround replacement. Never bundle unrelated updates.
  • Branch off main in /workspace/repo, apply the change, run pnpm run lint, pnpm run typecheck and pnpm run test. Add a changeset when a consumer of evlog would notice the change.
  • Push the branch and open a normal PR only when the local readiness gate in contributing is complete. Read CI, fix required failures, then request hugorcd as reviewer. If the change cannot clear the gate, report the blocker instead of opening a draft.
Show full SKILL.md (150 more words)Show less

4. Track what needs a human in Linear

A ready PR is its own artifact and needs nothing else. But an upstream finding that could not become a safe PR (a deprecation to plan around, a breaking change to schedule, a new capability worth adopting deliberately) becomes a Linear issue via linear__save_issue on the evlog team: a title stating the situation, the upstream link, what it affects in this repo, and the decision Hugo has to make. One issue per finding; search linear__list_issues first so a recurring finding updates the existing issue instead of duplicating it.

Then post one summary to the thread: one line per ready PR and per Linear issue, links inline.

When nothing is warranted

One line in the thread: versions current, or nothing in the releases affects this app. Never invent work to fill the run, and never open a Linear issue to say nothing happened.

© evloghq, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in apps/evi/agent/skills/upstream-sync of evloghq/evlog.

Open the folder on GitHubat commit 59a105f

Compare with similar skills

Upstream Sync next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Upstream Sync compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Upstream Sync this skillevloghq/evlog1.9k—~856Automated safety check: PassMIT
Verdaccio Pull Request Workflowverdaccio/verdaccio18k—~1.9kAutomated safety check: PassMIT
ZCF Release AutomationUfoMiao/zcf6.1k—~3.4kAutomated safety check: PassMIT
Linea Dependency MaintenanceConsensys-Incorporated/linea-attestation-registry1771 repos~3.7kAutomated safety check: WarnMIT
Releaseseasonedcc/remix-forms514—~1.3kAutomated safety check: PassMIT
Release Clawpatchopenclaw/clawpatch813—~1.1kAutomated safety check: PassMIT

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Works with

Categories

Questions about Upstream Sync

What does Upstream Sync do?

Check the eve and Vercel Connect ecosystem for updates and new features, keep the app current with them, and replace workarounds with the real improvements. Upstream Sync is an agent skill from evloghq/evlog. Check the eve and Vercel Connect ecosystem for updates and new features, keep the app current with them, and replace workarounds with the real improvements.

When should I use Upstream Sync?

Upstream Sync fits situations like: development work in your project.

How do I install Upstream Sync in Claude Code?

Run `npx skills add evloghq/evlog --skill upstream-sync -a claude-code`. Or copy the skill folder (apps/evi/agent/skills/upstream-sync in evloghq/evlog) into .claude/skills/upstream-sync in your project. Claude Code loads it when a task matches its description.

How do I install Upstream Sync in Codex?

Run `npx skills add evloghq/evlog --skill upstream-sync -a codex`. Or copy the skill folder (apps/evi/agent/skills/upstream-sync in evloghq/evlog) into .agents/skills/upstream-sync in your project. Codex loads it when a task matches its description.

Can I use Upstream Sync in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add evloghq/evlog --skill upstream-sync -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/upstream-sync, .gemini/skills/upstream-sync, .github/skills/upstream-sync and .opencode/skills/upstream-sync in your project.

What does Upstream Sync need to run?

Going by SKILL.md and its folder, Upstream Sync needs the command-line tools its instructions call (pnpm and npm).

Does Upstream Sync access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Upstream Sync safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Upstream Sync use?

Upstream Sync is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Upstream Sync use?

About 856 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Upstream Sync?

Skills that share tags, products or a category with Upstream Sync: Verdaccio Pull Request Workflow (verdaccio/verdaccio, 18k stars), ZCF Release Automation (UfoMiao/zcf, 6.1k stars), Linea Dependency Maintenance (Consensys-Incorporated/linea-attestation-registry, 177 stars) and Release (seasonedcc/remix-forms, 514 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Upstream Sync?

evloghq (a GitHub organization) maintains it in evloghq/evlog, which has 1,885 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on October 6, 2026.

Source: evloghq/evlog on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.