IDs-LE
Extract every UUID, ULID, NanoID, ObjectId and Snowflake, and decode the time inside
No editor in the loop? npx -y ids-le-mcp runs the same engine as an MCP server, so an agent can call extract_ids with nothing else installed, and cargo install ids-le puts the same check in a terminal. Every way to install it.
Overview
What IDs-LE does
An identifier usually records when and where something was made, and almost none of that is readable by eye. IDs-LE finds every UUID, ULID, NanoID, MongoDB ObjectId and Snowflake in a tree, says what each one is, and decodes the timestamp inside the ones that carry a clock — six bit layouts over three epochs, one of which starts in 1582, all reported as the same ISO-8601 UTC string. It refuses rather than guesses: thirty-two hex digits are an unhyphenated UUID and an MD5 digest in equal measure, so that run comes back as a row with a named reason instead of a confident wrong answer.
What people use it for
Date an id with no lookup
A v7 UUID, a ULID, an ObjectId or a Snowflake in a log resolves to an instant without a database in the loop.
Stop a regex mislabelling a digest
A run that fits two schemes is reported as ambiguous, not classified as whichever pattern happened to match first.
Sweep a repo for placeholders
The nil UUID, a v4 that is plainly not random, and a timestamp before 1990 each come back named rather than dropped.
Palette
5 commands
Open the command palette and type the name. Nothing is bound to a shortcut by default — the editor's keymap is the user's, not ours.
ids-le.showPositions: Show the line and column of each identifier in the report. On by default.
- Extract IDs
ids-le.extract - Scan Workspace for IDs
ids-le.scanWorkspace - Scan Folder for IDs
ids-le.scanFolder - Open Settings
ids-le.openSettings - Help & Troubleshooting
ids-le.help
Install
Install IDs-LE
VS Code
ext install nolindnaidoo.ids-leOpen Quick Open (Cmd/Ctrl+P) and paste.
Cursor / Windsurf
cursor --install-extension nolindnaidoo.ids-leCursor, Windsurf, VSCodium and the other VS Code forks pull from Open VSX. The id is the same as on the Marketplace.
AI agents
npx -y ids-le-mcpRuns IDs-LE's engine as an MCP server, so an agent can call extract_ids with no editor involved. VS Code 1.101+ needs nothing — the extension registers it for you.
Channels
Where it ships
One engine, 5 places to get it. Copy the one for the editor you use.
Links
Where IDs-LE lives
- VS Code Marketplaceids-le
- Open VSXfor Cursor, Windsurf and VSCodium
- npmids-le-mcp
- GitHubsource, issues, changelog
- MCP registryio.github.nolindnaidoo/ids-le
The family
The other 16
String-LEExtract every string in a codebase, so a person can read them
Numbers-LEExtract every hardcoded number in a codebase, so a person can check them
Paths-LEExtract every file path in a codebase, and say whether it still points at anything
Colors-LEExtract every color in a codebase, and say which ones are not in your palette
URLs-LEExtract every URL in a codebase, with its protocol and exact position
Dates-LEExtract every date and timestamp, and the exact instant each one resolves to
Units-LEExtract every quantity with its unit, normalized, and refuse the ambiguous ones by name
IPs-LEExtract every IP address, CIDR block and MAC, normalized and classified by scope
Regex-LEFind every regex in a codebase, and report which can be driven into catastrophic backtracking
Scrape-LECheck whether a page is scrapeable before the scraper is written, and say when it cannot tell
Versions-LEFind where one dependency is constrained differently across a repository's manifests
i18n-LEIdentify the i18n library a project uses, then audit its catalogs by that library's rules
DecisionLintLint Jev and Luna questions before they are sent: the questions you write for TypeSafe's Jev, OpenAI's Decisions API (gpt-6-luna) or any platform that serves one, as you type, with no API key and no network calls. An optional command asks the model itself to check a file
Secrets-LEFind hardcoded credentials in a codebase, and never print one into the report
EnvSync-LECompare the dotenv files in a tree, and say which keys are missing from which
Unicode-LEFind the Unicode that hides meaning — bidi controls, invisibles, homoglyphs, mixed scripts