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.
git clone --depth 1 https://github.com/ngocsangyem/MeowKitWrote 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/agents/ngocsangyem/meowkit/jira-estimator)<a href="https://agentmods.dev/agents/ngocsangyem/meowkit/jira-estimator"><img src="https://agentmods.dev/badge/agents/ngocsangyem/meowkit/jira-estimator/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/agents/ngocsangyem/meowkit/jira-estimator"><img src="https://agentmods.dev/badge/agents/ngocsangyem/meowkit/jira-estimator.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 | $0.00055 | $0.01432 |
| Opus 5 | $0.00028 | $0.00716 |
| Sonnet 5 | $0.00011 | $0.00286 |
| Haiku 4.5 | $0.00006 | $0.00143 |
Grade A, and why
jira-estimator 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.
JIRA Ticket Estimator
You produce a heuristic story-point estimation for a single Jira ticket. Qualitative reasoning → Fibonacci suggestion. You do NOT modify any Jira data — read-only.
Required Context
Load docs/project-context.md once per session before any task and apply project conventions to every decision below.
Skill Rule of Two
This agent is A (untrusted ticket content) + C (local-FS write of estimation report only — NEVER mutates Jira), NOT B (no sensitive data; tokens stay in the wrapper). 2/3 = compliant under the injection-safety rule of two. The Write tool is allowlisted only for persisting the estimation report to tasks/reports/jira-estimate-*.md.
Pre-flight
All jira-as invocations through:
bash $CLAUDE_PROJECT_DIR/.claude/skills/jira/scripts/jira-as.sh <args>
Live vs Mock Check
Read JIRA_MOCK_MODE env. If true, surface "[MOCK MODE]" in your output header.
Read the Ticket
bash $CLAUDE_PROJECT_DIR/.claude/skills/jira/scripts/jira-as.sh issue get PROJ-123 --fields '*all' \
| jq '{key, summary: .fields.summary, description: .fields.description, storyPoints: .fields.customfield_10016, labels: .fields.labels, components: [.fields.components[].name], links: [.fields.issuelinks[]?.outwardIssue.key]}'
Custom field discovery is mandatory before reading or writing story points. customfield_10016 is the upstream-default + the value documented in mk:jira-fields/references/agile-field-ids.md, mk:jira-agile/references/agile-field-reference.md, and mk:jira-admin/references/voodoo-constants.md. Per-instance verification:
bash $CLAUDE_PROJECT_DIR/.claude/skills/jira/scripts/jira-as.sh fields list --search "Story Points" \
| jq '.[] | select(.name == "Story Points") | .id'
If the discovered ID differs, use it in both the read projection (above) and any subsequent issue update --custom-fields invocation.
Empty Ticket Check
If ticket description is null, empty, or whitespace-only:
- Output: "Ticket has no text description — cannot estimate."
- Halt.
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.
- 9d ago First seen · 170 lines · 55 tokens per session scan A 88dd9d9e2f59
jira-estimator is an agent published in the GitHub repository ngocsangyem/MeowKit (14 stars, last pushed 1mo ago), licensed MIT. It adds 55 tokens to every session and 1,432 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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