.tact
2 claimants
1 primary
1 secondary
unambiguous primary
SWH popularity
Distinct files in the full Software Heritage archive (2026-06-04 export), dated by first appearance, following Desmazières, Di Cosmo, Lorentz (MSR 2025). Case-aggregated. citation.
22.5K
total files
20.4K
first seen 2021–2025 (90.6%)
2023
median year (half its files since)
Attribution status
This extension is attributed to Tact as primary by 2 authoritative claims.
Claimants (3)
Languages that list
.tact among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Tact | linguist | primary |
| Tact | pygments | primary |
| JSON | linguist | secondary |
Wikidata says… (1)
File formats, image formats, audio codecs and other non-PL
entities that claim
.tact on Wikidata
(property P1195) or in the Wikipedia infobox.
Source: data/derived/external_extension_index.csv.
Click Use as new PL on any row to open the
Add-PL form pre-filled with that entry's name, Wikipedia/Wikidata
URL, and this extension — one submission creates the PL + claim.
| Format | Class (Wikidata P31) | Suggested label | MIME | Notes | Action |
|---|---|---|---|---|---|
| Tact source code file Q131192273 file format | file format | — | — | — | Use as new PL ↗ |
Disambiguation rules (2)
Linguist heuristics that decide, by content, which language a
.tact file actually is.| Rule | Predicts | Kind | Predicates (truncated) | Measured on SWH |
|---|---|---|---|---|
h/linguist/.tact/0 | JSON | predicates | [{"kind": "any", "regexes": ["\\A\\s*\\{\\\""]}] | |
h/linguist/.tact/1 | Tact | default | [] |
SWH-mined examples (0)
No archived examples for .tact in our local mirror yet.