create-readonly-db-role SKILL.md skillA
create-readonly-db-role from davidondrej/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add davidondrej/skills/create-readonly-db-role@git:20260925.41f8784Pins git:20260925.41f8784 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- davidondrej/skills
- Path
skills/ops-and-setup/create-readonly-db-role/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260925.41f8784, committed Sep 25, 2026
- First version recorded
- Sep 12, 2026
- Size
- 5,335 bytes
- Repository stars
- 4,161
- License
- MIT
Set up read-only PostgreSQL access for agents. Use only when the user explicitly invokes /create-readonly-db-role.
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
# Create a Read-Only DB Role for Agents Prepare a SELECT-only role and protected connection. The SQL, role name, grants, denylist, RLS behavior, timeouts, and connection steps are examples to adapt to your system, not live production configuration. ## Access model 1. **SELECT-only grants.** Grant no write permissions; use a denylist to exclude secrets and PII. 2. **Current and future tables.** Grant SELECT on all tables in `<application_schema>`, including future tables through default privileges, then revoke denylisted tables. Never grant the `<restricted_schema>` schema. New sensitive tables need a manual revoke. 3. **Soft guardrails.** Set `default_transaction_read_only = on` and a short `statement_timeout` suited to the workload. **RLS:** tables may return no rows when the role has no applicable policy. Review row-level policies with the database administrator to ensure the role sees only the intended rows. ## Workflow 1. **Check the role:** `select rolname from pg_roles where rolname = '<reader_role>';`. Use your chosen name; if it exists, update rather than recreate it. …
Read the whole file at its exact version.
How to install
mdr add davidondrej/skills/create-readonly-db-role@sha256:36ea8da2c06a6918The line at the top of this page pins the label git:20260925.41f8784, 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_e5lexshlwngbnopt)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 12, 2026 and Sep 25, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260925.41f8784 latest | 2026-09-25 | 41f8784 | 5,335 B | A | view · diff |
| git:20260925.cb72780 | 2026-09-25 | cb72780 | 5,264 B | A | view · diff |
| git:20260912.8207114 | 2026-09-12 | 8207114 | 6,201 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 (5335 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
davidondrej/skills · 4,161 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_e5lexshlwngbnopt GET https://markdownregistry.com/api/v1/resolve?ref=davidondrej/skills/create-readonly-db-role GET https://markdownregistry.com/api/v1/blob/36ea8da2c06a691827117cd49f8bf2305efab6b5c3ba20a1a262a480b87e8023
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.