Diagram Design
cathrynlavery/diagram-design
Creates branded diagrams, from architecture, flowchart and sequence to charts and maps, as self-contained HTML with inline SVG, with import from draw.io, Mermaid and Excalidraw.
A skill your agent uses when GrayMatter should support analytics work by retrieving durable context, checking retrieval receipts, loading the live api-docs schema, and helping create…
Install Graymatter Analytics
$ npx skills add hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins graymatter-analytics --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/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics .claude/skills/graymatter-analytics && 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 "graymatter-analytics" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics into .claude/skills/graymatter-analytics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "graymatter-analytics", 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/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analyticsType 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 hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins graymatter-analytics --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics .agents/skills/graymatter-analytics && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "graymatter-analytics" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics into .agents/skills/graymatter-analytics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "graymatter-analytics", 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 hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins graymatter-analytics --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics .cursor/skills/graymatter-analytics && 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 "graymatter-analytics" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics into .cursor/skills/graymatter-analytics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "graymatter-analytics", 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/hashgraph-online/awesome-codex-plugins.git --path plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics--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 hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins graymatter-analytics --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics .gemini/skills/graymatter-analytics && 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 "graymatter-analytics" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics into .gemini/skills/graymatter-analytics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "graymatter-analytics", 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 hashgraph-online/awesome-codex-plugins graymatter-analyticsInstalls 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 hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics .github/skills/graymatter-analytics && 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 "graymatter-analytics" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics into .github/skills/graymatter-analytics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "graymatter-analytics", 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 hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins graymatter-analytics --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics .opencode/skills/graymatter-analytics && 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 "graymatter-analytics" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics into .opencode/skills/graymatter-analytics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "graymatter-analytics", 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
graymatter-analytics- GitHub stars
- 1.2k
- Token cost
- ~1.2k tokens
- SKILL.md length
- 600 words
- Files
- 2 (incl. references)
- Skills in repo
- 686
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
A skill your agent uses when GrayMatter should support analytics work by retrieving durable context, checking retrieval receipts, loading the live api-docs schema, and helping create…
- Works in 5 steps: Ensure GrayMatter is activated or at… → Retrieve relevant durable context… → Load or refresh /v1/api-docs before… → …
- GrayMatter should support analytics work by retrieving durable context
- SKILL.md covers Core Rule, Start Here, Source Order and Business Object Rules, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Graymatter Analytics is an agent skill from hashgraph-online/awesome-codex-plugins. Use when GrayMatter should support analytics work by retrieving durable context, checking retrieval receipts, loading the live api-docs schema, and helping create user/workspace-specific semantic layers without assuming tenant business objects exist.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/semantic-layer-template.md`).
It sits in Development, covering Technical documentation. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is Apache-2.0.
When your agent uses it
- GrayMatter should support analytics work by retrieving durable context
- Checking retrieval receipts
- Loading the live api-docs schema
- Helping create user/workspace-specific semantic layers without assuming tenant business objects exist
Example prompts
- “/graymatter-analytics”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Ensure GrayMatter is activated or at least check status with the available GrayMatter tool or script.
- Retrieve relevant durable context through GrayMatter memory or retrieval receipts.
- Load or refresh /v1/api-docs before using business objects, fields, relationships, or actions.
- Map the user question to only the object families and paths present in the live schema.
- If schema or retrieval evidence is missing, stale, partial, or conflicting, say so and ask for the smallest useful fallback.
What it can do on your machine
Read from SKILL.md and the folder at commit 78497e5. 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
Graymatter Analytics loads about 1.2k tokens when it runs, and up to ~2.1k if it reads all its reference files. Until then it costs about 68 tokens; SKILL.md has 600 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
The full file from hashgraph-online/awesome-codex-plugins at commit 78497e5, republished under its Apache-2.0 licence (© hashgraph-online). 600 words, ~1,201 tokens.
Download SKILL.mdSave it as
.claude/skills/graymatter-analytics/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- graymatter-analytics
- description
- Use when GrayMatter should support analytics work by retrieving durable context, checking retrieval receipts, loading the live api-docs schema, and helping create user/workspace-specific semantic layers without assuming tenant business objects exist.
GrayMatter Analytics
Use this skill when a user wants analytics, KPI, report, dashboard, or semantic-context work to use GrayMatter as the product surface for memory, retrieval, receipts, and live schema awareness.
Core Rule
/v1/api-docs is the source of truth for the current RBAC-visible schema.
GrayMatter helpers may expect GrayMatter product surfaces such as memory, retrieval, receipts, status, and schema introspection when the plugin is installed and authenticated. They must not assume business objects such as Invoice, UserPreference, StrategicPriority, KeyMetric, Customer, Workflow, or Application exist until the current /v1/api-docs says they exist for this account.
Start Here
- Ensure GrayMatter is activated or at least check status with the available GrayMatter tool or script.
- Retrieve relevant durable context through GrayMatter memory or retrieval receipts.
- Load or refresh
/v1/api-docsbefore using business objects, fields, relationships, or actions. - Map the user question to only the object families and paths present in the live schema.
- If schema or retrieval evidence is missing, stale, partial, or conflicting, say so and ask for the smallest useful fallback.
Source Order
- Live
/v1/api-docsfor schema, paths, components, fields, relationships, and actions. - GrayMatter retrieval receipt for memory-backed answers, including its answer policy and coverage status.
- Live GrayMatter memory read/query when receipts are unavailable.
- User-provided sources such as SQL, dashboards, docs, exports, screenshots, repository files, or local semantic layers.
- Local fallback files only when GrayMatter is unavailable or the user explicitly wants local-only work.
Business Object Rules
- Treat object families outside the GrayMatter core as conditional.
- Verify both the path/component and the specific field or relationship before using it in analysis.
- When an expected object family is missing, use the closest live schema object only if it is semantically appropriate and say why.
- Do not synthesize unavailable schema objects from examples, docs, memories, or another user's tenant.
- For high-stakes analytics, refresh schema and retrieve source evidence during the workflow, even when saved context exists.
Show full SKILL.md (277 more words)Show less
Normalized Context Rules
Analytics quality depends on graph traversal, filters, and retrieval receipts seeing structured fields rather than blobs.
- Do not write analytics context by stuffing metadata into
MemoryEntry.textorContentData.contentData. - Use
MemoryEntry.textonly for the concise durable fact, decision, todo, preference, handoff, or artifact summary. - Use
sourceChannel,metadata, tags, and explicit relationships for scope, provenance, workspace, workflow, dashboard, artifact, and agent identifiers. - Use
ContentDataonly for content artifacts or overflow detail; set or preservecontentType,category,status,tags, and JSONmetadata. - Never send audit fields such as
ownerId,ownerID,createdDate,lastModifiedDate, orlastAccessedDatein create/update payloads. - Before creating or updating a non-memory object, confirm the object and fields exist in
/v1/api-docs; prefer the first-class business object over a generic memory or content record. - When answering from memory or semantic retrieval, prefer retrieval receipts and respect their coverage, freshness, confidence, provenance, and answer policy.
Semantic Layers
GrayMatter can help create workspace-specific semantic layers, but shared plugin skills must stay generic.
Use references/semantic-layer-template.md when a user wants reusable analytics context. The layer should be generated from that user's live schema and supplied sources, then stored in the user's workspace or skill directory. Do not ship customer-specific metrics, private MemoryEntry content, local absolute paths, or workspace decisions as a universal GrayMatter layer.
Answering Rules
- Obey retrieval receipt policies such as retry, clarify, deny, low confidence, stale context, partial coverage, or conflicting context.
- Keep raw credentials, tokens, private personal fields, row-level customer data, and long private memory bodies out of generated artifacts.
- Separate product capability from tenant availability: GrayMatter may support schema-aware analytics, but the current tenant's
/v1/api-docsdecides what can be analyzed. - Prefer precise source gaps over confident guesses.
© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics of hashgraph-online/awesome-codex-plugins.
- SKILL.md
- references/semantic-layer-template.md
Open the folder on GitHubat commit 78497e5
Compare with similar skills
Graymatter Analytics 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 |
|---|---|---|---|---|---|---|
| Graymatter Analytics this skillhashgraph-online/awesome-codex-plugins | 1.2k | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Diagram Designcathrynlavery/diagram-design | 45k | 1 repos | ~7.5k | Automated safety check: Pass | MIT | |
| Simple Englishmoeru-ai/airi | 50k | 2 repos | ~4.6k | Automated safety check: Pass | MIT | |
| Get API Docs with chubandrewyng/context-hub | 14k | 2 repos | ~775 | Automated safety check: Pass | MIT | |
| Doc SyncJetBrains/ideavim | 10k | 2 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Mailspring App ScreenshotsFoundry376/Mailspring | 18k | — | ~1.5k | Automated safety check: Pass | GPL-3.0 |
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Questions about Graymatter Analytics
What does Graymatter Analytics do?
A skill your agent uses when GrayMatter should support analytics work by retrieving durable context, checking retrieval receipts, loading the live api-docs schema, and helping create…. Graymatter Analytics is an agent skill from hashgraph-online/awesome-codex-plugins. Use when GrayMatter should support analytics work by retrieving durable context, checking retrieval receipts, loading the live api-docs schema, and helping create user/workspace-specific semantic layers without assuming tenant business objects exist.
When should I use Graymatter Analytics?
Graymatter Analytics fits situations like: grayMatter should support analytics work by retrieving durable context; checking retrieval receipts; loading the live api-docs schema; helping create user/workspace-specific semantic layers without assuming tenant business objects exist.
How do I install Graymatter Analytics in Claude Code?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a claude-code`. Or copy the skill folder (plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics in hashgraph-online/awesome-codex-plugins) into .claude/skills/graymatter-analytics in your project. Claude Code loads it when a task matches its description.
How do I install Graymatter Analytics in Codex?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a codex`. Or copy the skill folder (plugins/ValkyrLabs/GrayMatter/skills/graymatter-analytics in hashgraph-online/awesome-codex-plugins) into .agents/skills/graymatter-analytics in your project. Codex loads it when a task matches its description.
Can I use Graymatter Analytics 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 hashgraph-online/awesome-codex-plugins --skill graymatter-analytics -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/graymatter-analytics, .gemini/skills/graymatter-analytics, .github/skills/graymatter-analytics and .opencode/skills/graymatter-analytics in your project.
What does Graymatter Analytics need to run?
SKILL.md names no scripts, command-line tools or credentials: Graymatter Analytics is instructions for the agent only.
Does Graymatter Analytics 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 Graymatter Analytics 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 Graymatter Analytics use?
Graymatter Analytics is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Graymatter Analytics use?
About 1.2k tokens (SKILL.md is roughly 4.8k 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 879 tokens, read only when the agent opens those files.
What are the alternatives to Graymatter Analytics?
Skills that share tags, products or a category with Graymatter Analytics: Diagram Design (cathrynlavery/diagram-design, 45k stars), Simple English (moeru-ai/airi, 50k stars), Get API Docs with chub (andrewyng/context-hub, 14k stars) and Doc Sync (JetBrains/ideavim, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Graymatter Analytics?
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,242 GitHub stars. The repository holds 686 skills in this directory. The repository was last updated on October 8, 2026.
Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.