Reproduce Chat States
different-ai/openwork
Fires known chat states in the running OpenWork desktop app, such as provider errors, retries and tool steps, so you can check how each renders.
How to find every sibling instance of a reported bug before fixing it.
Install Fix At The Boundary
$ npx skills add BuilderIO/agent-native --skill fix-at-the-boundary -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install BuilderIO/agent-native fix-at-the-boundary --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/BuilderIO/agent-native.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/fix-at-the-boundary .claude/skills/fix-at-the-boundary && 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 "fix-at-the-boundary" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/fix-at-the-boundary into .claude/skills/fix-at-the-boundary/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fix-at-the-boundary", 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/BuilderIO/agent-native/tree/main/.agents/skills/fix-at-the-boundaryType 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 BuilderIO/agent-native --skill fix-at-the-boundary -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install BuilderIO/agent-native fix-at-the-boundary --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/fix-at-the-boundary .agents/skills/fix-at-the-boundary && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "fix-at-the-boundary" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/fix-at-the-boundary into .agents/skills/fix-at-the-boundary/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fix-at-the-boundary", 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 BuilderIO/agent-native --skill fix-at-the-boundary -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install BuilderIO/agent-native fix-at-the-boundary --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/fix-at-the-boundary .cursor/skills/fix-at-the-boundary && 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 "fix-at-the-boundary" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/fix-at-the-boundary into .cursor/skills/fix-at-the-boundary/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fix-at-the-boundary", 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/BuilderIO/agent-native.git --path .agents/skills/fix-at-the-boundary--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 BuilderIO/agent-native --skill fix-at-the-boundary -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install BuilderIO/agent-native fix-at-the-boundary --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/fix-at-the-boundary .gemini/skills/fix-at-the-boundary && 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 "fix-at-the-boundary" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/fix-at-the-boundary into .gemini/skills/fix-at-the-boundary/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fix-at-the-boundary", 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 BuilderIO/agent-native fix-at-the-boundaryInstalls 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 BuilderIO/agent-native --skill fix-at-the-boundary -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/fix-at-the-boundary .github/skills/fix-at-the-boundary && 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 "fix-at-the-boundary" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/fix-at-the-boundary into .github/skills/fix-at-the-boundary/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fix-at-the-boundary", 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 BuilderIO/agent-native --skill fix-at-the-boundary -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install BuilderIO/agent-native fix-at-the-boundary --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/fix-at-the-boundary .opencode/skills/fix-at-the-boundary && 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 "fix-at-the-boundary" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/fix-at-the-boundary into .opencode/skills/fix-at-the-boundary/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fix-at-the-boundary", 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
fix-at-the-boundary- GitHub stars
- 7.1k
- Token cost
- ~1.2k tokens
- SKILL.md length
- 544 words
- Files
- 1
- Skills in repo
- 102
- Repo updated
- First seen
- Licence
- None found
At a glance
How to find every sibling instance of a reported bug before fixing it.
- Works in 5 steps: Derive the fingerprint from the symptom,… → Search before editing → Enumerate every hit before touching any… → …
- A bug report names one file but the defect is a call pattern
- SKILL.md covers Activation guard, Workflow, Reporting the sweep and Why this exists, plus 1 more section
- Calls rg
What it does
Fix At The Boundary is an agent skill from BuilderIO/agent-native. How to find every sibling instance of a reported bug before fixing it. Use whenever a bug report names one file but the defect is a call pattern, hook, duplicated literal, or copy-pasted helper that plausibly exists in other files, apps, or templates.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Testing & QA, covering QA and bug reports. The repository describes itself as: A framework for building agentic apps.
When your agent uses it
- A bug report names one file but the defect is a call pattern
- Duplicated literal
- Copy-pasted helper that plausibly exists in other files
Example prompts
- “/fix-at-the-boundary”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Derive the fingerprint from the symptom, not the file: the exact
- Search before editing
- Enumerate every hit before touching any file — write the list in your
- Decide where the fix lives. A shared helper some callers bypass →
- Apply the fix to every in-scope hit.
What it can do on your machine
Read from SKILL.md and the folder at commit be0d784. 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
Shell commands in SKILL.md call:
rg
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
Fix At The Boundary loads about 1.2k tokens when it runs. Until then it costs about 68 tokens; SKILL.md has 544 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 544 words (~1,159 tokens).
“Use this skill when a reported bug's root cause is a pattern — a function shape, a write sequence, a device/permission check, a duplicated literal, a copy-pasted helper — rather than a fact unique to the one file named in…”
- name
- fix-at-the-boundary
- scope
- dev
- metadata.internal
- true
Files
Just SKILL.md in .agents/skills/fix-at-the-boundary of BuilderIO/agent-native.
Open the folder on GitHubat commit be0d784
Compare with similar skills
Fix At The Boundary 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 |
|---|---|---|---|---|---|---|
| Fix At The Boundary this skillBuilderIO/agent-native | 7.1k | — | ~1.2k | Automated safety check: Pass | None | |
| Reproduce Chat Statesdifferent-ai/openwork | 24k | — | ~673 | Automated safety check: Pass | Custom licence | |
| Dynamo Jira TicketDynamoDS/Dynamo | 2k | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Moav E2EMotherofallVPNs/MoaV | 448 | — | ~1.9k | Automated safety check: Notes | MIT | |
| Creating A Coral TaskHuman-Agent-Society/CORAL | 1.1k | — | ~2.2k | Automated safety check: Pass | Apache-2.0 | |
| Launch Rlmarin-community/marin | 3.9k | — | ~894 | Automated safety check: Pass | Apache-2.0 |
Similar skills
Dynamo Jira Ticket
DynamoDS/Dynamo
Create structured Jira tickets for Dynamo from bug reports, failing tests, or feature requests.
Moav E2E
MotherofallVPNs/MoaV
Run and debug MoaV's end-to-end tests — real protocol connectivity (client-test.sh) and the moav CLI smoke test — against a LIVE server, via the self-hosted e2e workflow or a local test VPS.
Creating A Coral Task
Human-Agent-Society/CORAL
Author a new CORAL task — the three pieces that must line up (task.yaml, seed/, a packaged grader/), the coral init → coral validate → smoke-test loop, and how to pick a grader pattern (stdout…
Launch Rl
marin-community/marin
Define, validate, submit, or restart a Marin SkyRL experiment through its artifact main.
Actionbook Web Test
actionbook/actionbook
Run browser-based web tests against websites using Actionbook CLI.
More from BuilderIO/agent-native
All 102 skills in this repoActions
BuilderIO/agent-native
How to create and run agent actions. An agent skill from BuilderIO/agent-native.
Client Methods
BuilderIO/agent-native
Client method surface rules. An agent skill from BuilderIO/agent-native.
Adding A Feature
BuilderIO/agent-native
The four-area checklist every new feature must complete. An agent skill from BuilderIO/agent-native.
Address Feedback
BuilderIO/agent-native
Triage feedback from docs, issues, Slack threads, or pasted notes into verified bugs, UX proposals, unclear questions, and skipped noise.
Audit Log
BuilderIO/agent-native
Durable, access-scoped, append-only record of who changed what app data, when, and whether it was the agent or a human.
Automations
BuilderIO/agent-native
Event-triggered and schedule-triggered automations with natural-language conditions.
Related
Categories
Questions about Fix At The Boundary
What does Fix At The Boundary do?
How to find every sibling instance of a reported bug before fixing it. Fix At The Boundary is an agent skill from BuilderIO/agent-native. How to find every sibling instance of a reported bug before fixing it.
When should I use Fix At The Boundary?
Fix At The Boundary fits situations like: A bug report names one file but the defect is a call pattern; duplicated literal; copy-pasted helper that plausibly exists in other files.
How do I install Fix At The Boundary in Claude Code?
Run `npx skills add BuilderIO/agent-native --skill fix-at-the-boundary -a claude-code`. Or copy the skill folder (.agents/skills/fix-at-the-boundary in BuilderIO/agent-native) into .claude/skills/fix-at-the-boundary in your project. Claude Code loads it when a task matches its description.
How do I install Fix At The Boundary in Codex?
Run `npx skills add BuilderIO/agent-native --skill fix-at-the-boundary -a codex`. Or copy the skill folder (.agents/skills/fix-at-the-boundary in BuilderIO/agent-native) into .agents/skills/fix-at-the-boundary in your project. Codex loads it when a task matches its description.
Can I use Fix At The Boundary 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 BuilderIO/agent-native --skill fix-at-the-boundary -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/fix-at-the-boundary, .gemini/skills/fix-at-the-boundary, .github/skills/fix-at-the-boundary and .opencode/skills/fix-at-the-boundary in your project.
What does Fix At The Boundary need to run?
Going by SKILL.md and its folder, Fix At The Boundary needs the command-line tools its instructions call (rg).
Does Fix At The Boundary 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 Fix At The Boundary 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 Fix At The Boundary use?
No licence was found for Fix At The Boundary or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Fix At The Boundary use?
About 1.2k tokens (SKILL.md is roughly 4.6k 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 Fix At The Boundary?
Skills that share tags, products or a category with Fix At The Boundary: Reproduce Chat States (different-ai/openwork, 24k stars), Dynamo Jira Ticket (DynamoDS/Dynamo, 2k stars), Moav E2E (MotherofallVPNs/MoaV, 448 stars) and Creating A Coral Task (Human-Agent-Society/CORAL, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Fix At The Boundary?
BuilderIO (a GitHub organization) maintains it in BuilderIO/agent-native, which has 7,103 GitHub stars. The repository holds 102 skills in this directory. The repository was last updated on October 9, 2026.
Source: BuilderIO/agent-native on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.