echo SKILL.md skillA
echo from zhaojiannet/canon is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add zhaojiannet/canon/echo@git:20260914.a9571daPins git:20260914.a9571da in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- zhaojiannet/canon
- Path
plugins/lockstep-echo/skills/echo/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260914.a9571da, committed Sep 14, 2026
- First version recorded
- Jun 6, 2026
- Size
- 9,135 bytes
- Repository stars
- 4
- License
- MIT
Enforce Echo v5 handler conventions for Go, focused on error handling. Use when editing .go handler/route/middleware files or when the user mentions Echo, HandlerFunc, c.Bind, middleware, HTTPError, HTTPErrorHandler, error wrap, or graceful shutdown. Routes every failure through HTTPError and one central HTTPErrorHandler, matches errors with errors.Is/As, wraps and returns them, and starts the server with graceful shutdown.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
> Targets Echo v5 · verified 2026-09 (latest v5.3.1, released 2026-07-21). This skill enforces Echo v5 conventions for Go HTTP services. Apply only when the project imports `github.com/labstack/echo/v5` (v5.0+). If the project still imports `echo/v4` or earlier, **STOP** and ask the user—v5 import path is `v5/`. ## Why Echo Echo's selling point is its error-handling model. Handler signature `func(c *echo.Context) error` lets errors bubble naturally through the middleware chain. `*echo.HTTPError` is a typed, status-aware error that pairs cleanly with `errors.Is` / `errors.As`. A single `HTTPErrorHandler` converts every error to the wire format, so handlers stay short and uniform. The rule: **let errors flow as errors, never as JSON written inline**. Lose this and you lose Echo's core advantage. ## Core principles - **Handler signature**: `func(c *echo.Context) error`. Return errors. Do not write headers or JSON on the error path. - **Use `echo.NewHTTPError(status, msg)`** for all client-facing errors. Do not call `c.JSON(http.StatusBadRequest, ...)` directly. - **Centralize error → response in a custom `HTTPErrorHandler`**. Every handler benefits without duplication. …
Read the whole file at its exact version.
How to install
mdr add zhaojiannet/canon/echo@sha256:d0ebbf92860d2f03The line at the top of this page pins the label git:20260914.a9571da, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_xkwd5h2xtpdb3inq)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 6, 2026 and Sep 14, 2026, about one every 33 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260914.a9571da latest | 2026-09-14 | a9571da | 9,135 B | A | view · diff |
| git:20260914.f557ee2 | 2026-09-14 | f557ee2 | 9,168 B | A | view · diff |
| git:20260727.77f499e | 2026-07-27 | 77f499e | 8,487 B | A | view · diff |
| git:20260606.8fe8fe1 | 2026-06-06 | 8fe8fe1 | 8,358 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9135 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
zhaojiannet/canon · 4 stars · license MIT · pushed 2026-10-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xkwd5h2xtpdb3inq GET https://markdownregistry.com/api/v1/resolve?ref=zhaojiannet/canon/echo GET https://markdownregistry.com/api/v1/blob/d0ebbf92860d2f03e3e56b9319e63391239412aaaa42daf4ea4c2ba5270d3ecc
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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