Skills issues on Windows — page 2
Issues the maintainers labelled both platform:windows and area:skills.
171 issues · 33 open · 138 resolved (81%) · first seen Jan 5, 2026
Is this getting better or worse?
This class of problem is converging. 52 new reports in the last 90 days vs 112 in the 90 before — -54%. The open backlog peaked at 48 in 2026-04 and sits at 33 today.
Derived by counting each matching issue from its creation date until it closed. First-party
computation over the anthropics/claude-code tracker — the trend is not published
anywhere upstream.
Which builds report this
95 of these reports name the Claude Code build they were running, spanning 67 releases. Heaviest reporters:
- Claude Code v2.1.126
- Claude Code v2.1.92
- Claude Code v2.1.119
- Claude Code v2.1.150
- Claude Code v2.1.123
- Claude Code v2.1.108
- Claude Code v2.1.96
- Claude Code v2.1.235
Report volume, not a defect count: an issue can mention a build without that build having caused the failure. Versions come from the version string in the bug-report template, matched against real published tags.
Do these get fixed?
Median time to close is 32 days across 138 closures. Of the 138 closures with a recorded reason, 16% were closed as completed and 116 as not-planned or duplicate. The most recent completed fix landed in 2026-08.
Workarounds reported by the community
55 of these issues post a workaround someone says worked. The highest-engagement ones:
- [Feature Request] Support standard `.github/skills/` directory for agent skills
- Workaround while Claude Code only loads : keep one skill source and copy it into Claude’s paths. That writes (and if you have instructions). It does not make Claude Code read — it is a workaround until this ships. I main…
Found in the thread of #16345 · still open - [BUG] Cowork /schedule skill fails — create_scheduled_task tool not injected into session context (Windows)
- Preflight Checklist - [x] I have searched [existing issues]( and this hasn't been reported yet - [x] This is a single bug report (please file separate reports for different bugs) -
Found in the description of #29022 · still open - [BUG] /claude-api bundled skill saturates context unconditionally — ~77% spike from neutral question
- …has the right file structure — it just needs a router. ▎ ▎ Workaround: A user command at ~/.claude/commands/claude-api.md overrides the bundled skill and implements on-demand loading. Effective but fragile — requires ma…
Found in the description of #63566 · resolved - Skill tool call returns 'Tool result missing due to internal error' and agent gets stuck
- …aming hangs indefinitely - 26224 — General hanging/freezing Workaround User must Ctrl+C and manually re-invoke the skill. The CLAUDE.md directive to "immediately retry on internal error" is not followed because the agent…
Found in the description of #43866 · resolved - [BUG] Skill subagent inherits parent's 1M-context tier but not extra-usage entitlement
- …log warning instead of failing the subagent. Today the only workaround is to remove the directive entirely (subagent inherits parent + parent's already-paid extra-usage), which defeats the cost-saving intent of declaring…
Found in the description of #57249 · resolved
Excerpts are quoted from the linked issue so you can judge relevance before opening it. Threads that only ask for a workaround, or report that there is none, are excluded. These are community suggestions, not official guidance from Anthropic — read the full thread before applying one.
Matching issues 101–171
Ranked by community engagement (reactions weighted over comments).
- [BUG] Slash command autocomplete should prioritize built-in commands over skills with the same prefix
- "No repos match" when installing GitHub skill despite app connected and MCP workaround attempted
- [ultrareview] silently returns empty findings on large branch diffs (no scope warning, burns free quota)
- [Bug] bash: .claude/hooks/skill-instructions-hook.sh: No such file or directory
- [BUG] v2.1.140 VS Code extension on Windows: project skills missing from slash-command autocomplete (#9710 / #32331 cluster unfixed)
- [Feature Request] Document local scope custom skills/plugins installation
- [BUG] Cowork sub-agent permission resolver translates Linux mount paths to non-existent Windows paths
- [BUG]VS Code extension: slash command triggers API Error: Content block not found
- [Bug] Ultrareview quota decremented on API rate limit failure
- [BUG] /ultrareview consumed free credit on timeout without producing any output
- Feature request: auto-enter plan mode for slash commands / sub-agents
- Skills pane shows empty state during cloud-sync, indistinguishable from "no skills configured"
- [BUG] Enabled scheduled tasks no longer surface in available-skills list (Desktop 1.5354.0 / 1.5220.0)
- [BUG] Skill autocomplete no longer filters by substring match (regression)
- C:/Program Files/Git/ultrareview fails with 502 (and previously 404) — bundle upload broken
- [BUG] SSH session startup: 13+ min per-session delay from sequential per-file plugin sync + no UI toggle for bundled Anthropic skills
- Discover project commands/skills from additional working directories (--add-dir)
- [Bug] skillOverrides in user/project settings has no effect — g7H() is a stub returning "on"
- [BUG] Windows desktop app rejects dotted slash commands (e.g. /smithy.fix) — parses "." as a separator
- Model hallucinates inline tool XML with prior-session content when skill Bash permission fails
- Skill name collision across plugins: fully qualified name resolves to wrong plugin
- [Bug] /insights command: Model omits file:// link from "output exactly" message block
- [BUG] .claude/skills/ not exempt from protected directory prompt on Windows (v2.1.94)
- [BUG] skill-creator: scripts fail on Windows when Python is managed by uv
- Marketplace plugin skill gets silently mapped to official plugin skill instead of registering separately
- [BUG] Custom commands disappear from autocomplete after first use — requires CLI restart
- [BUG] --permission-mode bypassPermissions / --dangerously-skip-permissions not working in print mode (-p) with --resume
- document-skills: soffice.py crashes on Windows (AF_UNIX AttributeError)
- [BUG] Skills from `additionalDirectories` (settings.json) are not loaded
- [BUG] Custom slash commands from `.claude/commands/` no longer appear in autocomplete
- [BUG] Skills visible in Customize UI but not invocable as slash commands when located in project directory
- [BUG] Settings UI only shows 1 skill despite 56 skills installed and functional
- [BUG] Desktop (Windows/WSL): detached window's slash menu lists only bundled skills
- Leading multi-slash prompts expand inconsistently (31/35 only the first, 4/35 all); UserPromptSubmit hooks can't see which were dispatched
- [BUG] A command file named skill.md in .claude/commands/ silently swallows all top-level commands in that directory (matched as SKILL.md; Windows case-insensitive)
- [BUG] /code-review skill is now being automatically loaded in sub-agents the code-review skill spawns. Causing it to keep recursively making more agents
- Workflow tool: deep-research synthesis step accepts schema-valid-but-empty (placeholder) agent output as final result
- /deep-research and /workflows commands unusable with official Claude auth, but work via third-party API (e.g. Kimi)
- [BUG]
- Assistant message text hidden when a turn ends with ScheduleWakeup
- Comandos com model: haiku no frontmatter não forçam execução em Haiku quando usuário está em outro modelo
- user-invocable: false is ignored by the per-plugin browser menu
- ultrareview crashed before producing findings — refund request (Windows, 2.1.161)
- [BUG] [VS Code Extension] Organization-level skills not loaded (only filesystem paths checked)
- /insights: prescriptions need repo-grounding; one trust-eroding security false-positive
- [Windows] Skill shell execution opens interactive mintty (Git Bash) window that does not close
- [BUG] Files over some size threshold (in my skill's case, a file >614 lines / >23,458 bytes) get cut off in the Linux-sandbox view, preventing skill from executing on Windows
- Skill execution fails when glob pattern contains backticks - shell command substitution bug
- Custom skill not appearing in slash commands or Settings > Skills UI
- /doctor skill applies CLI-installation assumptions when run in Claude Code Desktop (Windows)
- [Bug] System Prompt/Skill Instructions Not Persisted Across Messages
- code-review skill diffs against wrong base branch, pulls in unrelated files as findings
- [BUG] Slash Menu Issue And Claude Desktop CodeIntegrity.cat Issue
- skill-creator: description optimization loop silently measures nothing on Windows (select() on pipe, then cp1252 report crash)
- [Bug] Anthropic API Error: All review agents terminated before completing task
- [Bug] Unintended model fallback from Claude 3.5 Sonnet during /security-review built-in skill
- Skill/slash command names containing a space only match on the first word
- /schedule fails to connect to remote backend; retries return ambiguous non-error/non-success responses
- Skill tool: multi-word args cause $N positional substitution to corrupt literal $N tokens in skill body (e.g. Excel cell refs)
- [BUG] Assistant's turn overruns and writes a fake "user" message that gets treated as real input
- [BUG] claude-api reinvocation duplicates ~350K-token payload; later turns read ~778K and force >1M compaction
- [Bug] Compact limit error triggered despite available context and free space
- Skill-listing context budget: document trim policy + expose a registered/dropped diagnostic + supported suppression flag
- skill-creator: run_eval.py uses select() on a pipe, fails on all Windows runs (WinError 10038) and reports a misleading score
- [BUG] `xlsx` skill's `recalc.py` fails on every Windows machine with `module 'socket' has no attribute 'AF_UNIX'`
- [Bug] Missing fallback when disable-model-invocation flag prevents mid-sentence dispatch recovery
- [BUG] "Clean my computer" skill deletes staged files on unrelated command
- Slash-command list does not pick up newly added .claude/commands skills until full app restart (Windows desktop)
- skill-creator: read_text()/write_text() sem encoding=utf-8 corrompem conteúdo acentuado no Windows
- Agent tool: skill path mentioned in subagent prompt auto-invokes the skill and can end the run with no work done
- [BUG] VS Code extension: namespaced /plugin:skill form shows “No matching commands” and cannot be submitted; skills whose name matches a built-in command are unreachable