vercel-labs/fx

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Unix like coding agent

Stars: 3.1k
Forks: 352
Open beginner issues: 2
Indexed issues: 74
Avg merge: 10h 47m
Merged PRs (30d): 444

Dominant language: Zig
License: Apache-2.0
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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67 open issues indexed

ACP: a second session/prompt during a running turn fails with -32600 "Prompt already in progress" instead of queueing Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

vercel-labs/fx#993 · Opened Sep 21, 2026
Feature request: make the per-turn automatic review budget configurable Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

vercel-labs/fx#990 · Opened Sep 20, 2026
Add `/history` to browse prompts from the current session Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

vercel-labs/fx#924 · Opened Sep 17, 2026
Custom connections: first request to a cold local model always hits the 120s timeout; recovery depends on the server's prompt cache Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

vercel-labs/fx#902 · Opened Sep 16, 2026
[Bug] Poor compatibility / degraded responses when using Gemini proxy models Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vercel-labs/fx#888 · Opened Sep 15, 2026
Bug: MCP optional arguments become required, breaking Linear comment tools Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

vercel-labs/fx#887 · Opened Sep 15, 2026
Bug: Permissions, The last matching rule wins. Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

vercel-labs/fx#859 · Opened Sep 13, 2026
Bug: fx spins at 100% CPU or aborts after terminal revocation on macOS Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 76/100

vercel-labs/fx#852 · Opened Sep 13, 2026
Feature request: Add `/tree` for session navigation and branching, similar to pi Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

vercel-labs/fx#847 · Opened Sep 13, 2026
Bug: Transcript history transitions can leave gaps or hide follow-up output Open

bug

Difficulty 5/5 Over a week Newbie friendliness 35/100

vercel-labs/fx#815 · Opened Sep 11, 2026
Bug: Language guard rejects valid translation requests written in non-English languages Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

vercel-labs/fx#809 · Opened Sep 11, 2026
Add on-demand /recap for read-only Done and Next summaries Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

vercel-labs/fx#784 · Opened Sep 10, 2026
Add /btw for non-blocking contextual side questions Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

vercel-labs/fx#783 · 1 reaction · Opened Sep 10, 2026
[Feature request] Use Apple Foundation Models as a local model provider in fx Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

vercel-labs/fx#764 · Opened Sep 9, 2026
Is `fx` python embeddable? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

vercel-labs/fx#763 · Opened Sep 9, 2026
Add an uninstall method Open

Difficulty 2/5 1-3 hours Newbie friendliness 64/100

vercel-labs/fx#718 · 1 comment · Opened Sep 6, 2026
Render Mermaid diagrams in the TUI Open

Difficulty 5/5 Over a week Newbie friendliness 48/100

vercel-labs/fx#621 · Opened Sep 3, 2026
Bug: URLs get cut off on narrow screens Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

vercel-labs/fx#618 · Opened Sep 3, 2026
Bug: Codex OAuth login reaches callback but token exchange returns HTTP 400 on macOS Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

vercel-labs/fx#611 · 1 comment · Opened Sep 3, 2026
Document or support synchronous JavaScript stream transports Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

vercel-labs/fx#587 · Opened Sep 2, 2026
Bug: Russian text on codex subscription Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vercel-labs/fx#579 · Opened Sep 2, 2026
Would you accept moving inline tests to per-module test roots to enable per-module test steps? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

vercel-labs/fx#549 · Opened Aug 31, 2026
Feature request: Fork or rewind a session from an earlier turn Open

bug

Difficulty 5/5 Over a week Newbie friendliness 35/100

vercel-labs/fx#537 · 5 comments · Opened Aug 31, 2026
[Question] fx makes DNS requests for every webfetch call Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

vercel-labs/fx#527 · Opened Aug 30, 2026
Custom FX_GATEWAY_CHAT_URL: streaming response finish-event contract undocumented (InvalidProviderFinishReason) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

vercel-labs/fx#514 · 1 comment · Opened Aug 28, 2026
Bug: Long agent turns leak memory until the OS kills the process Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 58/100

vercel-labs/fx#483 · Opened Aug 27, 2026
Failed team lookup during login is reported as a successful sign-in Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

vercel-labs/fx#476 · Opened Aug 27, 2026
Bug: Grok Team OAuth fails after authorization Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vercel-labs/fx#461 · 2 comments · Opened Aug 27, 2026
Bug: an out-of-range stored expiry aborts fx instead of reading as expired Open

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

vercel-labs/fx#445 · 1 comment · Opened Aug 26, 2026
fx produces zero frames / exits silently in headless pty (tmux) — startup blocks on auth reachability Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

vercel-labs/fx#439 · Opened Aug 26, 2026
Bug: failed session write during provider token refresh double-frees the refresh token and account id Open

Difficulty 3/5 1-2 days Newbie friendliness 74/100

vercel-labs/fx#436 · 1 comment · Opened Aug 26, 2026
Bug: not able to connect with codex getting the provider model catalog might not be available issue Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

vercel-labs/fx#433 · Opened Aug 25, 2026
Support image, audio, and PDF attachments in all execution modes Open

type: feature

Difficulty 4/5 3-5 days Newbie friendliness 50/100

vercel-labs/fx#416 · 1 comment · 2 reactions · Opened Aug 25, 2026
Bug: /paste blocks input while macOS reads a clipboard image Open

type: bug

Difficulty 4/5 3-5 days Newbie friendliness 58/100

vercel-labs/fx#414 · Opened Aug 25, 2026
Add an optional frozen-harness autoresearch loop for measurable local optimizations Open

type: feature

Difficulty 5/5 Over a week Newbie friendliness 28/100

vercel-labs/fx#411 · Opened Aug 24, 2026
Workspace grep resolves git through PATH while file discovery refuses to Open

type: security

Difficulty 3/5 1-2 days Newbie friendliness 72/100

vercel-labs/fx#395 · Opened Aug 24, 2026
fx advertises plugins, but fx has no plugin function Open

type: feature

Difficulty 5/5 Over a week Newbie friendliness 42/100

vercel-labs/fx#390 · 1 comment · 6 reactions · Opened Aug 24, 2026
[Feature Request] Support GitHub Copilot subscription Open

type: feature

Difficulty 5/5 Over a week Newbie friendliness 25/100

vercel-labs/fx#384 · 1 reaction · Opened Aug 24, 2026
Bug: Saving an auth session leaves the tokens in freed memory Open

type: security

Difficulty 4/5 3-5 days Newbie friendliness 68/100

vercel-labs/fx#378 · Opened Aug 23, 2026
Error: I can't return to the zai/glm-5.2-fast model Open

type: bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

vercel-labs/fx#367 · 6 comments · Opened Aug 23, 2026
Bug: OAuth tokens stay in freed memory after the response is parsed Open

type: security

Difficulty 4/5 3-5 days Newbie friendliness 55/100

vercel-labs/fx#365 · Opened Aug 23, 2026
Support a user-defined system prompt Open

type: feature

Difficulty 5/5 Over a week Newbie friendliness 20/100

vercel-labs/fx#362 · 1 reaction · Opened Aug 23, 2026
Native Windows port plus OpenCode Go provider support Open

type: feature

Difficulty 5/5 Over a week Newbie friendliness 35/100

vercel-labs/fx#330 · 1 comment · 1 reaction · Opened Aug 22, 2026
Legacy Streamable HTTP MCP server can drive fx into a no-delay reconnect loop Open

type: bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

vercel-labs/fx#301 · Opened Aug 22, 2026
Installer fails when the host cannot resolve fx.sh Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vercel-labs/fx#283 · 1 comment · Opened Aug 22, 2026
glob_files misses untracked files in subdirectories when searching from the workspace root Open

type: bug

Difficulty 3/5 1-2 days Newbie friendliness 78/100

vercel-labs/fx#275 · Opened Aug 21, 2026
Add `--prompt-file` CLI flag for reading prompts from a file Open

type: feature

Difficulty 4/5 3-5 days Newbie friendliness 58/100

vercel-labs/fx#264 · 1 reaction · Opened Aug 21, 2026
Auto-approved commands are re-read by the operator's shell before they run Open

type: security

Difficulty 4/5 3-5 days Newbie friendliness 52/100

vercel-labs/fx#258 · Opened Aug 21, 2026
Support native Windows builds Open

type: feature

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vercel-labs/fx#254 · 3 comments · Opened Aug 21, 2026
Auto-mode reviewer is not told which shell will interpret the command Open

type: security

Difficulty 3/5 1-2 days Newbie friendliness 72/100

vercel-labs/fx#237 · 1 comment · Opened Aug 21, 2026

vercel-labs/fx

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