Rahman Khan
Rahman Khan's work was selected for the XERJ Corpus Hub, the open reference memory AI coding agents search before they write code. When an agent meets the same problem, it gets this implementation back as a worked example, with the author and the repository attached.
Totals across every corpus @rahmankhanjohn appears in; a commit selected for two corpora counts once. Files and lines count the selected commits; each corpus indexes the whole repository at its pinned commit.
What an agent can do with the failover-budget corpus
rahmankhanjohn/failover-budget: Measure what DNS and GSLB failover actually costs, in the only unit that matters: what your users experience
- Look up how failover-budget implements dns, failover, gslb, with answers cited to file and line.
- Reuse a worked example: the commit “Add --runbook and --diagnose flags with operator runbook and decision…” (4 files · Python).
- Answer from failover-budget's real Python source instead of memory (Networking, protocols and serialisation).
- How does failover-budget implement dns?
Search the GitHub repository rahmankhanjohn/failover-budget with XERJ (https://hub.xerj.org/corpus/rahmankhanjohn--failover-budget). Run these in a shell, in order, and check each result before the next: 1. xerj --help (success: it prints usage). If xerj is missing: curl -fsSL https://xerj.org/get | sh 2. git clone https://github.com/rahmankhanjohn/failover-budget failover-budget && git -C failover-budget checkout f153c59214e0977e3eb01c33e061afa1d02f3d91 3. Start a local node and leave it running: xerj --insecure --data-dir ./xerj-data 4. xerj autoindex ./failover-budget --url http://127.0.0.1:9200 --prefix failover-budget --progress plain 5. xerj autoindex map --url http://127.0.0.1:9200 Then answer my question from the indexed files and cite the ax_path of every hit. Query syntax: https://xerj.org/llms.txt Licence: MIT. Keep the copyright notice and credit the authors.
corpus rahmankhanjohn--failover-budget · Networking, protocols and serialisation
Related corpora: awesome-sre, how-they-sre, rahmankhanjohn/event-schema-lint, rahmankhanjohn/portability-lint
Case study: reference coding for agents
Selected work
rahmankhanjohn/failover-budget
Measure what DNS and GSLB failover actually costs, in the only unit that matters: what your users experience
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/airgap-ai-stack
Pack, verify, deploy, and attest open-weight AI models inside enclaves with no internet egress. Go, zero dependencies
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/boundary-check
Analyze service dependency graphs for co-deploy pairs and circular deps
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/cost-tag-validator
Check the tagging taxonomy before finance asks you for cost per customer
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/event-schema-lint
Validate event schemas for versioning, idempotency, and required fields
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/gitops-check
Validate GitOps repository structure: controller, secrets, config separation
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/ocost-splitter
Split the unattributed cost of a shared Kubernetes cluster across the namespaces that share it
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/openstack-lab
The free OpenStack path, in scripts. DevStack sandbox, Kolla-Ansible rehearsal, status checker
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/portability-lint
Find what would break if this moved to another cloud, before you promise anyone portability
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/rahmankhanjohn
Open-source CLI tools for cloud infrastructure: DNS failover measurement, K8s cost splitting, GitOps validation, and more
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
rahmankhanjohn/soc-evals
Score a managed SOC proposal against the five questions that decide whether it works
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
Sign in with GitHub or Hugging Face to see more: every selected commit in full (commit date, every folder, licence review state, pin) and the pack builds of each corpus.
[](https://hub.xerj.org/contributors/rahmankhanjohn)
Included with the author's permission (email, 2026-10-28), under each repository's own licence, with attribution. Own more repositories? Sign in with GitHub and add them. Want something removed? Reply to the email, withdraw it on /add, or open an issue on xerj-org/xerj.