smol-developer
https://github.com/smol-ai/developer
Early (2023) OSS coding agent by Swyx — minimalist single-prompt-to-codebase loop. More artifact-than-product now (subsumed by Cline / Aider / Claude Code) but historically significant — defined the "smol" school of single-file coding agents.
Inactive · Verified 2026-10-26 · fresh as of 2026-10-26 · 43 cited facts, 1 with a third-party source · 2 recorded changes · Suggest a correction
At a glance
- Type
- OSS minimalist coding agent (smol AI) repo fix
- Tier
- T3
- Section
- Agent IDEs & coding harnesses
- Latest release
- none — no GitHub releases published repo fix
- Pricing
- Free (OSS) repo fix
- Funding
- not applicable — OSS / no commercial entity fix
- Freshness
- 2026-10-26 fix
- Layer
- agent-infra repo fix
- Licensing
- open-source repo fix
- Developer activity
- OpenRank 0.16 (12-mo avg 0.41) · 1 participants — 2026-09 third-party fix
When to use
Optimised for: minimal prompt-to-codebase reference loop
Anti-fit: essentially deprecated; kept as reference/teaching code
Pros & cons
Pros
Pedagogical landmark — Swyx's smol-dev essay seeded the modern OSS coding-agent space.
Cons
Inactive since 2024; replaced by Aider / Cline / Claude Code in any real workflow.
Claims & capabilities
Built by Swyx (Shawn Wang); one of the earliest "junior dev in a loop" coding agents.
Technical surface
- API surface
- CLI
- Backend storage
- local files
- Deployment
- Self-hosted only — Python library/CLI
- Embedding model
- not applicable — not a memory product
- Multi-tenancy
- single-user
- MCP
- searched not found
- A2A
- searched not found
- OpenTelemetry
- searched not found
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- Opencode (SST) T2
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- GitHub Copilot (Agent Mode) T1
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Sources (42 cited facts, 1 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is OSS minimalist coding agent (smol AI) repo
- What it does & what's distinct Early (2023) OSS coding agent by Swyx — minimalist single-prompt-to-codebase loop. More … repo
- Claims / benefits Built by Swyx (Shawn Wang); one of the earliest "junior dev in a loop" coding agents. repo
- Modalities text repo
- Created 2023-05 repo
- Latest release none — no GitHub releases published repo
- License MIT repo
- GitHub smol-ai/developer — ~12.2k stars, last commit n/a (dormant) repo
- Mindshare Front-page HN launch 2023; foundational reference in "agent loops" essays repo
- Customers / scale OSS community (historical) repo
- Pricing Free (OSS) repo
- Compliance OSS — no formal compliance repo
- Data handling Local CLI — LLM calls go through OpenAI API; no smol-developer-managed data plane repo
- Deployment Self-hosted only — Python library/CLI repo
- HQ US (Swyx — Singapore/US) repo
- Founders / pedigree Shawn "Swyx" Wang (smol AI) repo
- Memory volume / scale no scale claim repo
- Code/weights release Open-source — github.com/smol-ai/developer repo
- API surface CLI repo
- Backend storage local files repo
- Multi-tenancy single-user repo
- Namespace primitives per-project repo
- Contradiction handling human-arbitrate repo
- Validated verticals OSS / experimentation only — superseded by modern agents repo
- Time to running <10min repo
- Anti-fit essentially deprecated; kept as reference/teaching code repo
- Optimised for minimal prompt-to-codebase reference loop repo
- Adjacent infrastructure OpenAI API (GPT-3.5/4); single-file Python script; no other dependencies beyond LLM prov… repo
- Pros Pedagogical landmark — Swyx's smol-dev essay seeded the modern OSS coding-agent space. repo
- Cons Inactive since 2024; replaced by Aider / Cline / Claude Code in any real workflow. repo
- Project & sources github.com/smol-ai/developer; smol.ai repo
- commit-trajectory [{"ym":"2023-05","cum":72},{"ym":"2023-06","cum":89},{"ym":"2023-07","cum":108},{"ym":"2… repo
- cost-input-usd-per-mtok 0 repo
- cost-output-usd-per-mtok 0 repo
- cost-tier free repo
- cost-pricing-model free-tier repo
- cost-last-verified 2026-06-29 repo
- architecture-deployment-locus local repo
- licensing-bucket open-source repo
- positioning-platform-vs-product platform repo
- taxonomy-three-layer-rollup agent-infra repo
- developer-activity-opendigger {"activity":2.02,"as_of":"2026-09","openrank_12mo":0.41,"openrank_current":0.16,"partici… third-party
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
Related systems
References (1)
- OpenAI GPT family (GPT-5 / GPT-4o / o3 / o4) depends on at runtime — adjacent-infrastructure cell: OpenAI API (GPT-3.5/4); single-file Python script; no other dependencies beyond LLM provider