SDD Observatory
Stars
807
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1
Open issues
5
Age
9 months
Last push
last month
Latest release
v3.1.9 Jul 18, 2026
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Commits per week, last 12 months · 740 total
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Metrics updated Aug 27, 2026 · collected automatically from the GitHub API

Spec structure

Location
openspec/
Formats
Markdown
Notes
Ten Markdown files: AGENTS.md and project.md at the root, specs/ with two capability specs (chunk-processing/spec.md with seven requirements, batch-operations/spec.md with two), and changes/archive/ with two completed change folders from 2026-01-14 (refactor-generation-pipeline, replace-fix-timestamps-with-regenerate), each holding proposal.md, design.md, and tasks.md. No active change folders. Permanent capability specs are English; the archived change docs mix some Chinese prose.

Assessment drift: high

Spec-to-code drift

High. OpenSpec usage was a four-day burst in mid-January 2026: two change proposals (refactor-generation-pipeline, replace-fix-timestamps-with-regenerate) were proposed, implemented, and archived on 2026-01-14, and the last spec-path commit is the 2026-01-18 project rename. The project itself has shipped continuously since — five releases from v3.1.5 through v3.1.9 between June and 2026-07-18, with multiple commits on the last push day — while openspec/ went untouched for six months. Both permanent specs still carry the scaffolded placeholder purpose (“TBD - created by archiving change … Update Purpose after archive”), so even the surviving specs were never finished after archiving.

Defects and rework

Not yet assessed. The two archived change folders each include a tasks.md, so a future review could compare rework on the spec-driven generation-pipeline refactor against the project’s ordinary fix cadence.

Maintenance outcomes

A single-maintainer project with a fast release tempo where OpenSpec reads as a completed experiment rather than an ongoing practice: the framework structured one refactor and one feature replacement in January 2026, then development returned to shipping without specs. Worth watching whether the openspec/ tree is revived, updated, or removed.

Timeline

  1. Latest spec activity

    "docs: rename project to MioSub and update core documentation" — the last commit to touch the `openspec/` path.

  2. OpenSpec adopted

    First commit to `openspec/`: "chore: add agent specifications and open specs configuration". The same day, two change proposals were completed and archived ("docs(openspec): archive completed proposals and add permanent specs").

Metrics updated Aug 27, 2026 · Assessment last reviewed Jul 19, 2026 · Added Jul 19, 2026 · How we track