circuit-breaker-for-downstream-service-calls SKILL.md skillA
circuit-breaker-for-downstream-service-calls from himanshuj16/algo-trading-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add himanshuj16/algo-trading-skills/circuit-breaker-for-downstream-service-calls@v2.0.0Pins v2.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- himanshuj16/algo-trading-skills
- Path
skills/circuit-breaker-for-downstream-service-calls/SKILL.md- Versions recorded
- 5
- Latest version
- v2.0.0, committed Sep 3, 2026
- First version recorded
- Jul 26, 2026
- Size
- 12,205 bytes
- Repository stars
- 50
- License
- Apache-2.0
Use when a trading process calls a non-order dependency (reference data, an alt-data vendor, an internal microservice) that can hang and exhaust threads and connection pools. Never wrap order submission or cancels with it.
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
## When to Use Use this skill when a trading process makes **synchronous calls to a downstream service it does not control** — a reference-data or corporate-action API, a historical/alt-data vendor, a sentiment endpoint, an internal risk-annotation microservice — and that service can become slow or unavailable without the trading system being obliged to stop. The failure this prevents is not the failed call. It is the *queue behind it*: N threads blocked on a dependency that takes 30 seconds to time out will hold N connections, N threads and N slots in whatever pool they came from, and the outage propagates into components that never touched the sick service. The breaker converts a slow failure into a fast, explicit one that the caller can handle — cached value, degraded mode, skip. `CircuitBreaker` in `scripts/circuit_breaker.py` is the reference implementation: thread-safe, monotonic-clocked, with a single-probe HALF_OPEN, escalating backoff, and optional slow-call detection. ## When NOT to Use - **On the order path.** Never wrap order submission, order cancellation, or a kill switch. Fast-failing a *cancel* is strictly worse than failing slowly: it turns a slow …
Read the whole file at its exact version.
How to install
mdr add himanshuj16/algo-trading-skills/circuit-breaker-for-downstream-service-calls@sha256:3da18908e8577842The line at the top of this page pins the label v2.0.0, 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_vfn6dod3djdkkra5)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 26, 2026 and Sep 3, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-09-03 | 8527a51 | 12,205 B | A | view · diff |
| v2.0.0 | 2026-08-22 | 3ed130d | 12,374 B | A | view · diff |
| v1.0.0 | 2026-08-07 | 89d1436 | 2,969 B | A | view · diff |
| v1.0.0 | 2026-07-30 | dfc60c7 | 2,967 B | A | view · diff |
| v1.0.0 | 2026-07-26 | fee1cf4 | 2,978 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 (12205 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
himanshuj16/algo-trading-skills · 50 stars · license Apache-2.0 · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vfn6dod3djdkkra5 GET https://markdownregistry.com/api/v1/resolve?ref=himanshuj16/algo-trading-skills/circuit-breaker-for-downstream-service-calls GET https://markdownregistry.com/api/v1/blob/3da18908e8577842a9f4e450ad9bfb00e9b550ecb87e8f707014ecaa8157f079
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.