Iptvnator Sqlite DB Worker
4gray/iptvnator
A skill your agent uses when changing Electron SQLite IPC, database-worker operations, request-scoped progress or cancellation, worker packaging, or runtime verification of non-EPG database work.
Forensically inspect and repair Composer browser profiles — offline (Chrome OPFS / SQLite extract) or live via /recovery.html debug port.
Install Composer Forensics
$ npx skills add dxos/dxos --skill composer-forensics -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dxos/dxos composer-forensics --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/dxos/dxos.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/composer-forensics .claude/skills/composer-forensics && 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 "composer-forensics" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composer-forensics into .claude/skills/composer-forensics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composer-forensics", 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/dxos/dxos/tree/main/.agents/skills/composer-forensicsType 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 dxos/dxos --skill composer-forensics -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dxos/dxos composer-forensics --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/composer-forensics .agents/skills/composer-forensics && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "composer-forensics" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composer-forensics into .agents/skills/composer-forensics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composer-forensics", 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 dxos/dxos --skill composer-forensics -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dxos/dxos composer-forensics --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/composer-forensics .cursor/skills/composer-forensics && 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 "composer-forensics" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composer-forensics into .cursor/skills/composer-forensics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composer-forensics", 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/dxos/dxos.git --path .agents/skills/composer-forensics--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 dxos/dxos --skill composer-forensics -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dxos/dxos composer-forensics --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/composer-forensics .gemini/skills/composer-forensics && 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 "composer-forensics" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composer-forensics into .gemini/skills/composer-forensics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composer-forensics", 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 dxos/dxos composer-forensicsInstalls 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 dxos/dxos --skill composer-forensics -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/composer-forensics .github/skills/composer-forensics && 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 "composer-forensics" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composer-forensics into .github/skills/composer-forensics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composer-forensics", 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 dxos/dxos --skill composer-forensics -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dxos/dxos composer-forensics --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dxos/dxos.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/composer-forensics .opencode/skills/composer-forensics && 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 "composer-forensics" agent skill from https://github.com/dxos/dxos/tree/main/.agents/skills/composer-forensics into .opencode/skills/composer-forensics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "composer-forensics", 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
composer-forensics- GitHub stars
- 525
- Token cost
- ~3.1k tokens
- SKILL.md length
- 796 words
- Files
- 39 (incl. scripts)
- Skills in repo
- 41
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Forensically inspect and repair Composer browser profiles — offline (Chrome OPFS / SQLite extract) or live via /recovery.html debug port.
- Works in 9 steps: Locate → Extract → Validate → …
- Slow space open
- SKILL.md covers When to use, Safety, Pipeline (always in this order) and Composer recovery mode (in-app), plus 6 more sections
- Runs JavaScript and Python scripts from its folder; calls node, python3 and bash; reaches preview.composer.space
What it does
Composer Forensics is an agent skill from dxos/dxos. Forensically inspect and repair Composer browser profiles — offline (Chrome OPFS / SQLite extract) or live via /recovery.html debug port. Use for data loss, corruption, slow space open, Automerge bloat, or when the app won't boot. Follow DOCTOR.md for live sessions: user opens debug port, agent explores, keeps a report, confirms before any data changes.
Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 40 other files, including scripts (for example `COMMANDS.md`, `DOCTOR.md` and `LINEAR-tagindex-write-amplification.md`).
It sits in Databases. It works with SQLite. The repository describes itself as: TypeScript implementation of the DXOS protocols, SDK, toolchain and Composer.
When your agent uses it
- Slow space open
- Automerge bloat
- The app wont boot
Example prompts
- “/composer-forensics”
Requirements
- Python 3
- Node.js
Workflow steps
9 steps, taken from the step headings in SKILL.md.
- Locate
- Extract
- Validate
- Probe (JS — uses @dxos packages)
- Automerge — find largest doc
- Automerge — binary vs JSON size (perf debugging)
- Automerge — mutation analysis
- Automerge — escalate to maintainers
- Automerge — bench load
What it can do on your machine
Read from SKILL.md and the folder at commit f0fc12a. 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
Ships 10 files in scripts/ (JavaScript and Python, from the files we listed), which the agent can run.
Shell commands in SKILL.md call:
nodepython3bashpnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
preview.composer.space
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
Composer Forensics loads about 3.1k tokens when it runs. Until then it costs about 94 tokens; SKILL.md has 796 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); the scripts in this folder 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 796 words (~3,141 tokens).
“Extract Composer client data from a live Chrome profile on disk, validate, and analyze offline — or diagnose and repair live via recovery mode.”
- name
- composer-forensics
Files
SKILL.md and 38 other files (scripts) in .agents/skills/composer-forensics of dxos/dxos.
- SKILL.md
- COMMANDS.md
- DOCTOR.md
- LINEAR-tagindex-write-amplification.md
- MEMORY.md
- STORAGE.md
- VALIDATION.md
- reports/README.md
- reports/REPORT-TEMPLATE.md
- scripts/.gitignore
- scripts/CHANGELOG.md
- scripts/automerge-bench-load.js
- scripts/automerge-dump-json.js
- scripts/automerge-escalate.js
- scripts/automerge-inspect.js
- scripts/automerge-list.js
- scripts/composer-recovery.js
- scripts/extract-opfs-sqlite.py
- scripts/locate-origin.py
- … and 20 more
Open the folder on GitHubat commit f0fc12a
Compare with similar skills
Composer Forensics 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 |
|---|---|---|---|---|---|---|
| Composer Forensics this skilldxos/dxos | 525 | — | ~3.1k | Automated safety check: Pass | Custom licence | |
| Iptvnator Sqlite DB Worker4gray/iptvnator | 7.3k | — | ~824 | Automated safety check: Pass | MIT | |
| Analyze Nsys Profilemlc-ai/pith-train | 355 | — | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Reactive Sqlite UIfastrepl/anarlog | 9.5k | — | ~699 | Automated safety check: Pass | MIT | |
| Sqlite Schema Designfastrepl/anarlog | 9.5k | — | ~1.9k | Automated safety check: Pass | MIT | |
| MakemigrationsdeusXmachina-dev/memorylane | 121 | — | ~973 | Automated safety check: Pass | GPL-3.0 |
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Related
Works with
Categories
Questions about Composer Forensics
What does Composer Forensics do?
Forensically inspect and repair Composer browser profiles — offline (Chrome OPFS / SQLite extract) or live via /recovery.html debug port. Composer Forensics is an agent skill from dxos/dxos.html debug port.
When should I use Composer Forensics?
Composer Forensics fits situations like: slow space open; automerge bloat; the app wont boot.
How do I install Composer Forensics in Claude Code?
Run `npx skills add dxos/dxos --skill composer-forensics -a claude-code`. Or copy the skill folder (.agents/skills/composer-forensics in dxos/dxos) into .claude/skills/composer-forensics in your project. Claude Code loads it when a task matches its description.
How do I install Composer Forensics in Codex?
Run `npx skills add dxos/dxos --skill composer-forensics -a codex`. Or copy the skill folder (.agents/skills/composer-forensics in dxos/dxos) into .agents/skills/composer-forensics in your project. Codex loads it when a task matches its description.
Can I use Composer Forensics 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 dxos/dxos --skill composer-forensics -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/composer-forensics, .gemini/skills/composer-forensics, .github/skills/composer-forensics and .opencode/skills/composer-forensics in your project.
What does Composer Forensics need to run?
Going by SKILL.md and its folder, Composer Forensics needs JavaScript and Python for the scripts in its folder and the command-line tools its instructions call (node, python3, bash and pnpm). Our summary lists: Python 3; Node.js.
Does Composer Forensics access the network?
SKILL.md names 1 domain. In commands or code: preview.composer.space; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Composer Forensics 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Composer Forensics use?
Composer Forensics 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 Composer Forensics use?
About 3.1k tokens (SKILL.md is roughly 13k 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 Composer Forensics?
Skills that share tags, products or a category with Composer Forensics: Iptvnator Sqlite DB Worker (4gray/iptvnator, 7.3k stars), Analyze Nsys Profile (mlc-ai/pith-train, 355 stars), Reactive Sqlite UI (fastrepl/anarlog, 9.5k stars) and Sqlite Schema Design (fastrepl/anarlog, 9.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Composer Forensics?
dxos (a GitHub organization) maintains it in dxos/dxos, which has 525 GitHub stars. The repository holds 41 skills in this directory. The repository was last updated on October 8, 2026.
Source: dxos/dxos on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.