Agents SDK
hodgef/apiker
Build AI agents on Cloudflare Workers using the Agents SDK. An agent skill from hodgef/apiker.
Context for the jcodemunch-observatory weekly scorecard — what it tracks, the Monday 06:00 UTC cron, why scores must be pulled live rather than transcribed, the NestJS grade story, and the…
Install Observatory
$ npx skills add jgravelle/jcodemunch-mcp --skill observatory -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jgravelle/jcodemunch-mcp observatory --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/jgravelle/jcodemunch-mcp.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/observatory .claude/skills/observatory && rm -rf skills-srcUse ~/.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/
Install the "observatory" agent skill from https://github.com/jgravelle/jcodemunch-mcp/tree/main/.claude/skills/observatory into .claude/skills/observatory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "observatory", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/jgravelle/jcodemunch-mcp/tree/main/.claude/skills/observatoryType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add jgravelle/jcodemunch-mcp --skill observatory -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jgravelle/jcodemunch-mcp observatory --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jgravelle/jcodemunch-mcp.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/observatory .agents/skills/observatory && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "observatory" agent skill from https://github.com/jgravelle/jcodemunch-mcp/tree/main/.claude/skills/observatory into .agents/skills/observatory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "observatory", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jgravelle/jcodemunch-mcp --skill observatory -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jgravelle/jcodemunch-mcp observatory --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jgravelle/jcodemunch-mcp.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/observatory .cursor/skills/observatory && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "observatory" agent skill from https://github.com/jgravelle/jcodemunch-mcp/tree/main/.claude/skills/observatory into .cursor/skills/observatory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "observatory", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/jgravelle/jcodemunch-mcp.git --path .claude/skills/observatory--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add jgravelle/jcodemunch-mcp --skill observatory -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jgravelle/jcodemunch-mcp observatory --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jgravelle/jcodemunch-mcp.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/observatory .gemini/skills/observatory && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "observatory" agent skill from https://github.com/jgravelle/jcodemunch-mcp/tree/main/.claude/skills/observatory into .gemini/skills/observatory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "observatory", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install jgravelle/jcodemunch-mcp observatoryInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add jgravelle/jcodemunch-mcp --skill observatory -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jgravelle/jcodemunch-mcp.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/observatory .github/skills/observatory && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "observatory" agent skill from https://github.com/jgravelle/jcodemunch-mcp/tree/main/.claude/skills/observatory into .github/skills/observatory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "observatory", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jgravelle/jcodemunch-mcp --skill observatory -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jgravelle/jcodemunch-mcp observatory --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jgravelle/jcodemunch-mcp.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/observatory .opencode/skills/observatory && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "observatory" agent skill from https://github.com/jgravelle/jcodemunch-mcp/tree/main/.claude/skills/observatory into .opencode/skills/observatory/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "observatory", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
observatory- GitHub stars
- 2.8k
- Token cost
- ~782 tokens
- SKILL.md length
- 390 words
- Files
- 1
- Skills in repo
- 10
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Context for the jcodemunch-observatory weekly scorecard — what it tracks, the Monday 06:00 UTC cron, why scores must be pulled live rather than transcribed, the NestJS grade story, and the…
- Tasks that involve Scheduled and recurring tasks
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve MCP servers
What it does
Observatory is an agent skill from jgravelle/jcodemunch-mcp. Context for the jcodemunch-observatory weekly scorecard — what it tracks, the Monday 06:00 UTC cron, why scores must be pulled live rather than transcribed, the NestJS grade story, and the workflow's version dispatch input. Load before quoting, interpreting, or editing observatory scores or config.
Its SKILL.md is about 780 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 Backend & APIs, covering Scheduled and recurring tasks and MCP servers. It works with NestJS and Model Context Protocol. The repository describes itself as: Cut AI token costs 95%+ on code exploration. The leading MCP server for precise, symbol-level GitHub code retrieval via tree-sitter AST. Works with Claude Code, Cursor & any MCP…
When your agent uses it
- Tasks that involve Scheduled and recurring tasks
- Tasks that involve MCP servers
Example prompts
- “/observatory”
What it can do on your machine
Read from SKILL.md and the folder at commit 970c457. 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
Links to these hosts (documentation or services it may open):
jgravelle.github.io
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
Observatory loads about 782 tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 390 words of instructions outside code blocks.
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 390 words (~782 tokens).
“jcodemunch-mcp, jdocmunch-mcp, and jdatamunch-mcp are tracked weekly at https://jgravelle.github.io/jcodemunch-observatory/ alongside Express, FastAPI, Gin, Pydantic, Django, Flask, NestJS, and Cobra (11 repos total). Cron: Mondays 06:00 UTC. Config edits auto-trigger a rebuild via the workflow's push-on-paths filter.”
- name
- observatory
Files
Just SKILL.md in .claude/skills/observatory of jgravelle/jcodemunch-mcp.
Open the folder on GitHubat commit 970c457
Compare with similar skills
Observatory 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Observatory this skilljgravelle/jcodemunch-mcp | 2.8k | — | ~782 | Automated safety check: Pass | Custom licence | |
| Agents SDKhodgef/apiker | 127 | 3 repos | ~3k | Automated safety check: Pass | MIT | |
| NubaseOtterMind/Nubase | 622 | — | ~2.2k | Automated safety check: Notes | Apache-2.0 | |
| Toolifycoreyhaines31/makerskills | 851 | — | ~2.9k | Automated safety check: Notes | MIT | |
| Minimal Web Baas DemoTencentCloudBase/CloudBase-AI-Toolkit | 1.1k | 1 repos | ~2.3k | Automated safety check: Pass | MIT | |
| PicoClaw Agentsipeed/picoclaw | 30k | — | ~7.2k | Automated safety check: Notes | MIT |
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Nubase
OtterMind/Nubase
A skill your agent uses when the user mentions Nubase broadly, wants a backend for an AI-generated app, or needs to deploy/publish generated code online — across Database, Auth, Storage, Assets…
Toolify
coreyhaines31/makerskills
When you want to integrate an external tool, API, MCP server, or service into a project — the wizard walks you through auth, config, env vars, client wrapper code, example usage, and an optional…
Minimal Web Baas Demo
TencentCloudBase/CloudBase-AI-Toolkit
Fast path for a minimal CloudBase Web + database demo (最小前后端 / 最小可用 fullstack / Lovable-like BaaS).
PicoClaw Agent
sipeed/picoclaw
Answers questions about running and changing PicoClaw, from onboarding and model selection to MCP server setup, skill loading and scheduled jobs.
Cherry Studio Tool Guide
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Routes an agent inside Cherry Studio to the right first-party tool or bundled runtime for local scripts, documents, memory, schedules, knowledge bases, MCP servers and more.
More from jgravelle/jcodemunch-mcp
All 10 skills in this repoRelease
jgravelle/jcodemunch-mcp
Publishing a jMunch release (jcodemunch-mcp, jdocmunch-mcp, jdatamunch-mcp, jragmunch-cli), reviewing/merging/closing PRs, and responding to the community.
Benchmark Methodology
jgravelle/jcodemunch-mcp
Rules for measuring or quoting any benchmark number in this repo.
PR Description
jgravelle/jcodemunch-mcp
The PR title and body template, and the rules for any comment drafted for a reporter or contributor.
Changelog Format
jgravelle/jcodemunch-mcp
The shape of a CHANGELOG.md entry and heading in this repo. An agent skill from jgravelle/jcodemunch-mcp.
Claude Md Budget
jgravelle/jcodemunch-mcp
How to keep CLAUDE.md under its character Floor without deleting a rule: measure sections first, rotate by derivability, two edits per rotation.
Mechanism Not Instance
jgravelle/jcodemunch-mcp
The two questions that separate a fix for the reported spelling from a fix for the property.
Related
Works with
Questions about Observatory
What does Observatory do?
Context for the jcodemunch-observatory weekly scorecard — what it tracks, the Monday 06:00 UTC cron, why scores must be pulled live rather than transcribed, the NestJS grade story, and the…. Observatory is an agent skill from jgravelle/jcodemunch-mcp. Context for the jcodemunch-observatory weekly scorecard — what it tracks, the Monday 06:00 UTC cron, why scores must be pulled live rather than transcribed, the NestJS grade story, and the workflow's version dispatch input.
When should I use Observatory?
Observatory fits situations like: tasks that involve Scheduled and recurring tasks; tasks that involve MCP servers.
How do I install Observatory in Claude Code?
Run `npx skills add jgravelle/jcodemunch-mcp --skill observatory -a claude-code`. Or copy the skill folder (.claude/skills/observatory in jgravelle/jcodemunch-mcp) into .claude/skills/observatory in your project. Claude Code loads it when a task matches its description.
How do I install Observatory in Codex?
Run `npx skills add jgravelle/jcodemunch-mcp --skill observatory -a codex`. Or copy the skill folder (.claude/skills/observatory in jgravelle/jcodemunch-mcp) into .agents/skills/observatory in your project. Codex loads it when a task matches its description.
Can I use Observatory 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 jgravelle/jcodemunch-mcp --skill observatory -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/observatory, .gemini/skills/observatory, .github/skills/observatory and .opencode/skills/observatory in your project.
What does Observatory need to run?
SKILL.md names no scripts, command-line tools or credentials: Observatory is instructions for the agent only.
Does Observatory access the network?
SKILL.md names 1 domain. As links in the text: jgravelle.github.io. This is read from the text; nothing was executed.
Is Observatory 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 Observatory use?
Observatory 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 Observatory use?
About 782 tokens (SKILL.md is roughly 3.1k 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 Observatory?
Skills that share tags, products or a category with Observatory: Agents SDK (hodgef/apiker, 127 stars), Nubase (OtterMind/Nubase, 622 stars), Toolify (coreyhaines31/makerskills, 851 stars) and Minimal Web Baas Demo (TencentCloudBase/CloudBase-AI-Toolkit, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Observatory?
jgravelle (a GitHub user) maintains it in jgravelle/jcodemunch-mcp, which has 2,754 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on October 11, 2026.
Source: jgravelle/jcodemunch-mcp on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.