File Uploads
davila7/claude-code-templates
Expert at handling file uploads and cloud storage. An agent skill from davila7/claude-code-templates.
Entry P1 category router for file access and upload workflows.
MITAuto-check passed
Install File Access Vuln
$ npx skills add yaklang/hack-skills --skill file-access-vuln -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install yaklang/hack-skills file-access-vuln --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/file-access-vuln .claude/skills/file-access-vuln && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "file-access-vuln" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/file-access-vuln into .claude/skills/file-access-vuln/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "file-access-vuln", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/yaklang/hack-skills/tree/main/skills/file-access-vulnType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add yaklang/hack-skills --skill file-access-vuln -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install yaklang/hack-skills file-access-vuln --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/file-access-vuln .agents/skills/file-access-vuln && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "file-access-vuln" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/file-access-vuln into .agents/skills/file-access-vuln/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "file-access-vuln", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add yaklang/hack-skills --skill file-access-vuln -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install yaklang/hack-skills file-access-vuln --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/file-access-vuln .cursor/skills/file-access-vuln && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "file-access-vuln" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/file-access-vuln into .cursor/skills/file-access-vuln/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "file-access-vuln", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/yaklang/hack-skills.git --path skills/file-access-vuln--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add yaklang/hack-skills --skill file-access-vuln -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install yaklang/hack-skills file-access-vuln --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/file-access-vuln .gemini/skills/file-access-vuln && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "file-access-vuln" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/file-access-vuln into .gemini/skills/file-access-vuln/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "file-access-vuln", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install yaklang/hack-skills file-access-vulnInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add yaklang/hack-skills --skill file-access-vuln -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/file-access-vuln .github/skills/file-access-vuln && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "file-access-vuln" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/file-access-vuln into .github/skills/file-access-vuln/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "file-access-vuln", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add yaklang/hack-skills --skill file-access-vuln -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install yaklang/hack-skills file-access-vuln --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yaklang/hack-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/file-access-vuln .opencode/skills/file-access-vuln && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "file-access-vuln" agent skill from https://github.com/yaklang/hack-skills/tree/main/skills/file-access-vuln into .opencode/skills/file-access-vuln/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "file-access-vuln", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
file-access-vuln- GitHub stars
- 2.4k
- Token cost
- ~368 tokens
- SKILL.md length
- 140 words
- Files
- 1
- Skills in repo
- 27
- Repo updated
- First seen
- Licence
- MIT
At a glance
Entry P1 category router for file access and upload workflows.
- Works in 3 steps: First identify whether the entry point… → Then locate whether the issue appears in… → Small path-chain and upload-bypass…
- Testing download endpoints
- SKILL.md covers When to Use, Skill Map, Recommended Flow and Related Categories
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
File Access Vuln is an agent skill from yaklang/hack-skills. Entry P1 category router for file access and upload workflows. Use when testing download endpoints, file paths, local file inclusion, upload flows, preview pipelines, archive extraction, or storage and sharing boundaries.
Its SKILL.md is about 370 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: Helping AI Agent become an awesome practical hacker! The licence is MIT.
When your agent uses it
- Testing download endpoints
- Local file inclusion
- Preview pipelines
- Archive extraction
Example prompts
- “/file-access-vuln”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- First identify whether the entry point is a path parameter, download endpoint, or upload workflow
- Then locate whether the issue appears in accept, store, process, or serve stages
- Small path-chain and upload-bypass samples are merged into the main topic skills; no separate payload entry is needed
What it can do on your machine
Read from SKILL.md and the folder at commit 6fbf0bc. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
File Access Vuln loads about 368 tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 140 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from yaklang/hack-skills at commit 6fbf0bc, republished under its MIT licence (© yaklang). 140 words, ~368 tokens.
Download SKILL.mdSave it as
.claude/skills/file-access-vuln/SKILL.md (or your agent's skills folder).- name
- file-access-vuln
- description
- Entry P1 category router for file access and upload workflows. Use when testing download endpoints, file paths, local file inclusion, upload flows, preview pipelines, archive extraction, or storage and sharing boundaries.
File Access Router
This is the routing entry point for filesystem paths, download endpoints, upload pipelines, and file preview handling.
When to Use
- Parameters, filenames, download endpoints, or import flows influence file paths
- The target supports upload, preview, transcoding, extraction, sharing, download, or proxied file access
- You need to decide whether this is path traversal/LFI or an upload-validation/processing-chain issue
Skill Map
- Path Traversal LFI: path traversal, file read, wrapper abuse, include chains
- Upload Insecure Files: upload validation, storage paths, processing chains, overwrite risk, preview/share boundaries
Recommended Flow
- First identify whether the entry point is a path parameter, download endpoint, or upload workflow
- Then locate whether the issue appears in accept, store, process, or serve stages
- Small path-chain and upload-bypass samples are merged into the main topic skills; no separate payload entry is needed
Related Categories
© yaklang, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/file-access-vuln of yaklang/hack-skills.
Open the folder on GitHubat commit 6fbf0bc
Compare with similar skills
File Access Vuln next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| File Access Vuln this skillyaklang/hack-skills | 2.4k | — | ~368 | Automated safety check: Pass | MIT | |
| File Uploadsdavila7/claude-code-templates | 33k | 4 repos | ~238 | Automated safety check: Pass | MIT | |
| File Upload Accessibilitythedaviddias/Front-End-Checklist | 74k | — | ~418 | Automated safety check: Pass | MIT | |
| Router Onweave-os/router | 5.6k | — | ~169 | Automated safety check: Pass | Apache-2.0 | |
| Router Offweave-os/router | 5.6k | — | ~183 | Automated safety check: Pass | Apache-2.0 | |
| Acp Routeropenclaw/openclaw | 392k | — | ~2.4k | Automated safety check: Pass | MIT |
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File Upload Accessibility
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Questions about File Access Vuln
What does File Access Vuln do?
Entry P1 category router for file access and upload workflows. File Access Vuln is an agent skill from yaklang/hack-skills. Entry P1 category router for file access and upload workflows.
When should I use File Access Vuln?
File Access Vuln fits situations like: testing download endpoints; local file inclusion; preview pipelines; archive extraction.
How do I install File Access Vuln in Claude Code?
Run `npx skills add yaklang/hack-skills --skill file-access-vuln -a claude-code`. Or copy the skill folder (skills/file-access-vuln in yaklang/hack-skills) into .claude/skills/file-access-vuln in your project. Claude Code loads it when a task matches its description.
How do I install File Access Vuln in Codex?
Run `npx skills add yaklang/hack-skills --skill file-access-vuln -a codex`. Or copy the skill folder (skills/file-access-vuln in yaklang/hack-skills) into .agents/skills/file-access-vuln in your project. Codex loads it when a task matches its description.
Can I use File Access Vuln in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add yaklang/hack-skills --skill file-access-vuln -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/file-access-vuln, .gemini/skills/file-access-vuln, .github/skills/file-access-vuln and .opencode/skills/file-access-vuln in your project.
What does File Access Vuln need to run?
SKILL.md names no scripts, command-line tools or credentials: File Access Vuln is instructions for the agent only.
Does File Access Vuln access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is File Access Vuln safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does File Access Vuln use?
File Access Vuln is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does File Access Vuln use?
About 368 tokens (SKILL.md is roughly 1.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to File Access Vuln?
Skills that share tags, products or a category with File Access Vuln: File Uploads (davila7/claude-code-templates, 33k stars), File Upload Accessibility (thedaviddias/Front-End-Checklist, 74k stars), Router On (weave-os/router, 5.6k stars) and Router Off (weave-os/router, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains File Access Vuln?
yaklang (a GitHub organization) maintains it in yaklang/hack-skills, which has 2,418 GitHub stars. The repository holds 27 skills in this directory. The repository was last updated on September 13, 2026.
Source: yaklang/hack-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.