Outline
Vortiago/mcp-outline
Conventions and efficient workflows for Outline knowledge bases via mcp-outline tools.
Indexes a local file or project directory into context-mode's FTS5 knowledge base so later searches return focused snippets instead of rereading whole files.
Install Context Mode Indexer
$ npx skills add mksglu/context-mode --skill ctx-index -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mksglu/context-mode ctx-index --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/mksglu/context-mode.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/ctx-index .claude/skills/ctx-index && 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 "ctx-index" agent skill from https://github.com/mksglu/context-mode/tree/main/skills/ctx-index into .claude/skills/ctx-index/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctx-index", 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/mksglu/context-mode/tree/main/skills/ctx-indexType 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 mksglu/context-mode --skill ctx-index -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mksglu/context-mode ctx-index --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mksglu/context-mode.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/ctx-index .agents/skills/ctx-index && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ctx-index" agent skill from https://github.com/mksglu/context-mode/tree/main/skills/ctx-index into .agents/skills/ctx-index/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctx-index", 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 mksglu/context-mode --skill ctx-index -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mksglu/context-mode ctx-index --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mksglu/context-mode.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/ctx-index .cursor/skills/ctx-index && 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 "ctx-index" agent skill from https://github.com/mksglu/context-mode/tree/main/skills/ctx-index into .cursor/skills/ctx-index/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctx-index", 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/mksglu/context-mode.git --path skills/ctx-index--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 mksglu/context-mode --skill ctx-index -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mksglu/context-mode ctx-index --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mksglu/context-mode.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/ctx-index .gemini/skills/ctx-index && 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 "ctx-index" agent skill from https://github.com/mksglu/context-mode/tree/main/skills/ctx-index into .gemini/skills/ctx-index/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctx-index", 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 mksglu/context-mode ctx-indexInstalls 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 mksglu/context-mode --skill ctx-index -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mksglu/context-mode.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/ctx-index .github/skills/ctx-index && 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 "ctx-index" agent skill from https://github.com/mksglu/context-mode/tree/main/skills/ctx-index into .github/skills/ctx-index/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctx-index", 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 mksglu/context-mode --skill ctx-index -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mksglu/context-mode ctx-index --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mksglu/context-mode.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/ctx-index .opencode/skills/ctx-index && 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 "ctx-index" agent skill from https://github.com/mksglu/context-mode/tree/main/skills/ctx-index into .opencode/skills/ctx-index/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ctx-index", 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
ctx-index- GitHub stars
- 26k
- Token cost
- ~328 tokens
- SKILL.md length
- 126 words
- Files
- 1
- Skills in repo
- 11
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Indexes a local file or project directory into context-mode's FTS5 knowledge base so later searches return focused snippets instead of rereading whole files.
- Works in 6 steps: Prefer the ctx_index MCP tool when it is… → Ask for a path only if the user did not… → Use path, not large inline content, so… → …
- Indexing a project directory for later focused search
- SKILL.md covers Instructions and Safety
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
The agent prefers the ctx_index MCP tool when it is present, passing a path rather than inlining large content so file bytes stay out of the conversation. For a whole repository it applies conservative bounds and a clear source label, and it falls back to the context-mode CLI's index command when MCP tools are unavailable.
After indexing, it reports the source label, the number of files or sections indexed, and the matching ctx_search call to use afterward. The skill tells the agent not to index dependency folders, build output, secrets or generated artifacts, to prefer exclude patterns for noisy project-specific paths, and to ask before raising the maximum file count above 500 on a broad repository.
When your agent uses it
- Indexing a project directory for later focused search
- Adding a new local document to the knowledge base
- Re-indexing a repository before running searches against it
Example prompts
- “Index this repository so I can search it later without rereading files.”
- “Index the docs folder under the source label project:billing-service.”
- “Index this repo but exclude the dist and vendor folders.”
Requirements
- The context-mode MCP server or CLI
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Prefer the ctx_index MCP tool when it is available.
- Ask for a path only if the user did not provide one and the current project root is ambiguous.
- Use path, not large inline content, so file bytes do not enter the conversation.
- For repository indexing, pass conservative bounds and a clear source label
- If MCP tools are unavailable, fall back to the CLI
- Report the indexed source label, file count or section count, and the matching search command
What it can do on your machine
Read from SKILL.md and the folder at commit 0dfbe8d. 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 (its code samples are javascript and bash).
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
Context Mode Indexer loads about 328 tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 126 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 126 words (~328 tokens).
“Index local project content for later search.”
- name
- ctx-index
- user-invocable
- true
Files
Just SKILL.md in skills/ctx-index of mksglu/context-mode.
Open the folder on GitHubat commit 0dfbe8d
Compare with similar skills
Context Mode Indexer 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 |
|---|---|---|---|---|---|---|
| Context Mode Indexer this skillmksglu/context-mode | 26k | — | ~328 | Automated safety check: Pass | Custom licence | |
| OutlineVortiago/mcp-outline | 156 | — | ~818 | Automated safety check: Pass | MIT | |
| Qmd MCP Skillholon-run/uxc | 116 | — | ~1.3k | Automated safety check: Pass | MIT | |
| Documentation Serverandrea9293/mcp-documentation-server | 343 | — | ~2.3k | Automated safety check: Pass | MIT | |
| Open Knowledgeinkeep/open-knowledge | 4.5k | — | ~4.7k | Automated safety check: Pass | GPL-3.0 | |
| Basic Memory Setupbasicmachines-co/basic-memory | 4.1k | — | ~3.9k | Automated safety check: Pass | AGPL-3.0 |
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More from mksglu/context-mode
All 11 skills in this repoContext Mode Output Sandbox
mksglu/context-mode
Routes large command, file, API and browser output through context-mode tools so only the needed result enters the agent's context, instead of dumping it via Bash.
Context Mode for Antigravity CLI
mksglu/context-mode
Routing rules for using context-mode MCP tools in Antigravity CLI: sandboxed code runs, file analysis, indexed search and web fetches that keep large output out of the conversation.
Context Mode Ops
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Runs maintenance for the context-mode project with parallel subagents: issue triage, PR review, releases, bug fixes, announcements and branch syncing.
Context Mode Knowledge Purge
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Permanently deletes a project's or a single session's indexed context-mode knowledge base, after confirming the scope and warning what will be lost.
Context Mode Doctor
mksglu/context-mode
Run context-mode diagnostics. Checks runtimes, hooks, FTS5, plugin registration, npm and marketplace versions. Trigger: /context-mode:ctx-doctor
Context Mode Search
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Search context-mode's persistent FTS5 knowledge base for previously indexed local project content, documentation, or session memory. Trigger…
Related
Works with
Categories
Questions about Context Mode Indexer
What does Context Mode Indexer do?
Indexes a local file or project directory into context-mode's FTS5 knowledge base so later searches return focused snippets instead of rereading whole files. The agent prefers the ctx_index MCP tool when it is present, passing a path rather than inlining large content so file bytes stay out of the conversation. For a whole repository it applies conservative bounds and a clear source label, and it falls back to the context-mode CLI's index command when MCP tools are unavailable.
When should I use Context Mode Indexer?
Context Mode Indexer fits situations like: indexing a project directory for later focused search; adding a new local document to the knowledge base; re-indexing a repository before running searches against it.
How do I install Context Mode Indexer in Claude Code?
Run `npx skills add mksglu/context-mode --skill ctx-index -a claude-code`. Or copy the skill folder (skills/ctx-index in mksglu/context-mode) into .claude/skills/ctx-index in your project. Claude Code loads it when a task matches its description.
How do I install Context Mode Indexer in Codex?
Run `npx skills add mksglu/context-mode --skill ctx-index -a codex`. Or copy the skill folder (skills/ctx-index in mksglu/context-mode) into .agents/skills/ctx-index in your project. Codex loads it when a task matches its description.
Can I use Context Mode Indexer 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 mksglu/context-mode --skill ctx-index -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ctx-index, .gemini/skills/ctx-index, .github/skills/ctx-index and .opencode/skills/ctx-index in your project.
What does Context Mode Indexer need to run?
SKILL.md names no scripts, command-line tools or credentials: Context Mode Indexer is instructions for the agent only. Our summary lists: The context-mode MCP server or CLI.
Does Context Mode Indexer 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 Context Mode Indexer 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 Context Mode Indexer use?
Context Mode Indexer 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 Context Mode Indexer use?
About 328 tokens (SKILL.md is roughly 1.3k 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 Context Mode Indexer?
Skills that share tags, products or a category with Context Mode Indexer: Outline (Vortiago/mcp-outline, 156 stars), Qmd MCP Skill (holon-run/uxc, 116 stars), Documentation Server (andrea9293/mcp-documentation-server, 343 stars) and Open Knowledge (inkeep/open-knowledge, 4.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Context Mode Indexer?
mksglu (a GitHub user) maintains it in mksglu/context-mode, which has 26,014 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 10, 2026.
Source: mksglu/context-mode on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.