Agent skill

Update Backend Runtimes

by sesori-ai in sesori-ai/sesori_apps_monorepo

Plan and deliver a coordinated runtime-target refresh for every supported Sesori harness: OpenCode, Antigravity, Codex, GitHub Copilot, Cursor, Claude Code, Hermes Agent, Pi, Oh My Pi, DeepSeek, and…

Custom licenceAuto-check passed

Install Update Backend Runtimes

skills CLI
$ npx skills add sesori-ai/sesori_apps_monorepo --skill update-backend-runtimes -a claude-code

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

GitHub CLI
$ gh skill install sesori-ai/sesori_apps_monorepo update-backend-runtimes --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/sesori-ai/sesori_apps_monorepo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/update-backend-runtimes .claude/skills/update-backend-runtimes && 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
update-backend-runtimes
GitHub stars
126
Token cost
~5.8k tokens
SKILL.md length
2,837 words
Files
2 (incl. references)
Skills in repo
14
Repo updated
First seen
Licence
Custom licence

At a glance

Plan and deliver a coordinated runtime-target refresh for every supported Sesori harness: OpenCode, Antigravity, Codex, GitHub Copilot, Cursor, Claude Code, Hermes Agent, Pi, Oh My Pi, DeepSeek, and…

  • Works in 6 steps: Inventory every harness → Establish releases and dependencies → Audit changes and find opportunities → …
  • Harness target updates
  • SKILL.md covers Update-first policy, 1. Inventory every harness, 2. Establish releases and… and 3. Audit changes and find…, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Update Backend Runtimes is an agent skill from sesori-ai/sesori_apps_monorepo. Plan and deliver a coordinated runtime-target refresh for every supported Sesori harness: OpenCode, Antigravity, Codex, GitHub Copilot, Cursor, Claude Code, Hermes Agent, Pi, Oh My Pi, DeepSeek, and Grok Build. Audit releases, managed assets, adapter release dependencies, capability gaps, and simplifications; ask before adopting extra features. Use for harness target updates, runtime pins, or release audits.

Its SKILL.md is about 5.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/harnesses.md`).

It works with DeepSeek. The repository describes itself as: Sesori iOS/Android app and the Sesori Bridge CLI — drive Claude, Codex, OpenCode, Cursor, Pi, OMP, Hermes coding sessions from your phone.

When your agent uses it

  • Harness target updates

Example prompts

  • “/update-backend-runtimes”

Workflow steps

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

  1. Inventory every harness
  2. Establish releases and dependencies
  3. Audit changes and find opportunities
  4. Ask for guidance; write the plan
  5. Implement updates and collect proportional evidence
  6. Improve this skill and deliver

What it can do on your machine

Read from SKILL.md and the folder at commit 55c7d4c. 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

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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

Update Backend Runtimes loads about 5.8k tokens when it runs, and up to ~13k if it reads all its reference files. Until then it costs about 109 tokens; SKILL.md has 2,837 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~109
When it runs · the whole SKILL.md, loaded when a task matches
~5.8k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~13k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,837 words (~5,809 tokens).

“Plan and deliver current stable targets for every included harness. Audit the actual protocol seam Sesori uses and report worthwhile upstream changes; ask before adding optional features, not before doing the requested update. Updating this skill alone does not start…”

— opening of SKILL.md by sesori-ai, Custom licence
name
update-backend-runtimes
metadata.audience
maintainers
metadata.workflow
github

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (references) in .agents/skills/update-backend-runtimes of sesori-ai/sesori_apps_monorepo.

  • SKILL.md
  • references/harnesses.md

Open the folder on GitHubat commit 55c7d4c

Compare with similar skills

Update Backend Runtimes 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.

Update Backend Runtimes compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Update Backend Runtimes this skillsesori-ai/sesori_apps_monorepo126—~5.8kAutomated safety check: PassCustom licence
ModLens Image Vision Bridgeliustack/modlens4.2k—~1.3kAutomated safety check: NotesMIT
Distilly Person Profile Buildertitanwings/distilly25k—~15kAutomated safety check: NotesMIT
Evals Contextzgsm-ai/costrict4.5k1 repos~1.9kAutomated safety check: PassApache-2.0
J SpaceTiger3807861189/J-Space-Cognition-Suite3k—~3kAutomated safety check: PassApache-2.0
Weavebench Cua ReproduceAMAP-ML/LongHorizon-Harness1.7k—~1.6kAutomated safety check: PassMIT

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Works with

Questions about Update Backend Runtimes

What does Update Backend Runtimes do?

Plan and deliver a coordinated runtime-target refresh for every supported Sesori harness: OpenCode, Antigravity, Codex, GitHub Copilot, Cursor, Claude Code, Hermes Agent, Pi, Oh My Pi, DeepSeek, and…. Update Backend Runtimes is an agent skill from sesori-ai/sesori_apps_monorepo. Plan and deliver a coordinated runtime-target refresh for every supported Sesori harness: OpenCode, Antigravity, Codex, GitHub Copilot, Cursor, Claude Code, Hermes Agent, Pi, Oh My Pi, DeepSeek, and Grok Build.

When should I use Update Backend Runtimes?

Update Backend Runtimes fits situations like: harness target updates.

How do I install Update Backend Runtimes in Claude Code?

Run `npx skills add sesori-ai/sesori_apps_monorepo --skill update-backend-runtimes -a claude-code`. Or copy the skill folder (.agents/skills/update-backend-runtimes in sesori-ai/sesori_apps_monorepo) into .claude/skills/update-backend-runtimes in your project. Claude Code loads it when a task matches its description.

How do I install Update Backend Runtimes in Codex?

Run `npx skills add sesori-ai/sesori_apps_monorepo --skill update-backend-runtimes -a codex`. Or copy the skill folder (.agents/skills/update-backend-runtimes in sesori-ai/sesori_apps_monorepo) into .agents/skills/update-backend-runtimes in your project. Codex loads it when a task matches its description.

Can I use Update Backend Runtimes 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 sesori-ai/sesori_apps_monorepo --skill update-backend-runtimes -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/update-backend-runtimes, .gemini/skills/update-backend-runtimes, .github/skills/update-backend-runtimes and .opencode/skills/update-backend-runtimes in your project.

What does Update Backend Runtimes need to run?

SKILL.md names no scripts, command-line tools or credentials: Update Backend Runtimes is instructions for the agent only.

Does Update Backend Runtimes access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Update Backend Runtimes 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 Update Backend Runtimes use?

Update Backend Runtimes has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Update Backend Runtimes use?

About 5.8k tokens (SKILL.md is roughly 23k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6.8k tokens, read only when the agent opens those files.

What are the alternatives to Update Backend Runtimes?

Skills that share tags, products or a category with Update Backend Runtimes: ModLens Image Vision Bridge (liustack/modlens, 4.2k stars), Distilly Person Profile Builder (titanwings/distilly, 25k stars), Evals Context (zgsm-ai/costrict, 4.5k stars) and J Space (Tiger3807861189/J-Space-Cognition-Suite, 3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Update Backend Runtimes?

sesori-ai (a GitHub organization) maintains it in sesori-ai/sesori_apps_monorepo, which has 126 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on October 8, 2026.

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