Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add harness/harness-ai --skill dbops-changesetgit clone --depth 1 https://github.com/harness/harness-aiWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/harness/harness-ai/dbops-changeset)<a href="https://agentmods.dev/skills/harness/harness-ai/dbops-changeset"><img src="https://agentmods.dev/badge/skills/harness/harness-ai/dbops-changeset/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/harness/harness-ai/dbops-changeset"><img src="https://agentmods.dev/badge/skills/harness/harness-ai/dbops-changeset.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00078 | $0.07193 |
| Opus 5.5 | $0.00031 | $0.02877 |
| Sonnet 5.5 | $0.00016 | $0.01439 |
| Haiku 4.5 | $0.00008 | $0.00719 |
Grade A, and why
dbops-changeset scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to dbops-changeset — 11 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 614 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DBOPS Changeset Generation
Generate Liquibase database changesets from natural language descriptions, anchored to a real schema and instance from the Harness DBOPS service.
When to Use
When the user asks to:
- Create, add, modify, or drop tables, columns, indexes, constraints, or views as Liquibase changeset operations
- Generate a database migration or changeset
- Fix a failed migration or update an existing changeset
- Apply schema changes as Liquibase YAML
Prerequisites
The Skill tool loads this file (SKILL.md) automatically — do not Read it again.
Before generating Liquibase YAML, Read reference.md using the exact path listed in
the Skill tool result. It contains all Liquibase YAML rules, change types, rollback
patterns, batch migration guidelines, MongoDB JSON string requirements, and the
clarifying questions policy. Apply those rules in Step 4 when generating the changeset.
Full Workflow
Step 0: Check for Pre-Seeded Context (ALWAYS do this first)
At conversation start, the initial message may contain a JSON block with pre-selected identifiers injected by the Harness frontend UI:
{
"dbops_schema_id": "users-schema",
"dbops_instance_id": "prod-instance"
}
Read this JSON block (if present) before doing any tool calls.
| What's in context | What to do |
|---|---|
dbops_schema_id + dbops_instance_id |
Skip Steps 1 AND 2 — but immediately fetch instance metadata via harness_get(resource_type="database_instance", resource_id="<dbops_instance_id>", dbschema_id="<dbops_schema_id>") to obtain connector (needed in Step 3) and check hasSnapshot (needed in Step 3-B). |
Only dbops_schema_id |
Skip Step 1 — use this schema ID. Then go to Step 2-A |
| Neither | Full Steps 1 and 2 |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 614 lines · 78 tokens per session scan A 900dbc20a7d2
dbops-changeset is a skill published in the GitHub repository harness/harness-ai (27 stars, last pushed 4d ago), licensed Apache-2.0. It adds 78 tokens to every session and 7,193 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to dbops-changeset, differing in 11 lines, and is treated as a copy.
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