Tags
Add tags by typing
Tags in Contextium are inline. You add a tag by typing #tag directly inside a file's content — the same way tags work in Obsidian. The tag exists as soon as you save the file, and disappears when you remove the text. There is nothing to set up.
What are Tags?
A tag is just a word you write after a #. Tags are:
- Inline — they live in the file's content, not in a separate panel
- Flat — there are no categories, types, or hierarchies
- Reconciled on save — Contextium tracks a file's tags from whatever
#tagsit contains when you save
Because a file can contain as many tags as you like, the same file can surface from every angle you search.
Adding a Tag
To tag a file, type # followed by a word anywhere in the content:
We rotate the signing key before every release.
#authentication #release #backend
When you save, the file is tagged #authentication, #release, and #backend. That's the whole process — no dialog, no dropdown, no tag manager.
Tag Format
- Start with
#and follow it with a word, for example#api - Use hyphens instead of spaces, for example
#api-reference - Tags are flat words — there is no
type:valueformat, no categories, and no parent-child nesting
Examples:
#api#api-reference#needs-review#q3
Removing a Tag
Delete the #tag text from the file and save. The tag is removed from that file automatically.
Finding Files by Tag
Click a Tag
Tags render in your link color wherever they appear. Click any tag — in a file or in the Tags rail — and Contextium opens the Files page filtered to that tag, showing every file that contains it.
Filter the Files Page
On the Files page you can select one or more tags to filter your library:
- Open the Files page
- Choose a tag to filter by
- Add more tags to narrow further — the list shows files that carry all the selected tags
The Tags Rail
Open the Tags rail beside a file to see every tag that file carries at a glance. Click any tag in the rail to jump to the other files that share it.
Tags and Your AI
Because tags live in your content, they give your AI a clear signal about what each file is about. Tagging your files helps skills, agents, and AI Chat surface the right context — for example, asking "what do our #payments docs say about refunds?" points your AI at the files tagged #payments.
Tips
- Keep tags simple. A handful of clear tags per file is easier to scan than a long list.
- Reuse the same words. Consistent spelling (
#frontend, not#front-endone time and#frontendthe next) keeps related files together. - Tag what you'll search for. Tags are most useful for the topics, areas, or states you'll want to filter by later.