feat(skills): add otif-analysis skill

[gulmezeren2-byte]

Summary

Adds otif-analysis — a delivery-performance measurement skill: the OTIF metric ladder (tolerant reported KPI → strict on-time-in-full), the definition choices that inflate on-time numbers (date anchor, tolerance window, partial shipments, cancellations), driver decomposition, and raw-row reconciliation before reporting.

Fills a gap next to the existing inventory-demand-planning and logistics-exception-management skills; both are cross-referenced under Related Skills.

All surfaces wired: agent.yaml, manifests/install-modules.json (supply-chain-domain module), package.json files, and the catalog/doc counts (278 → 279 in the 11 places catalog:check tracks).

Type

• Skill
• Agent
• Hook
• Command

Testing

• node scripts/ci/catalog.js --text → documentation counts match the repository catalog (279)
• node tests/scripts/npm-publish-surface.test.js → passes (package.json files aligned to the module graph)
• Full npm test on my Windows machine shows only the same pre-existing environment failures as a clean main checkout (shell-probe and ENOBUFS suites) — no new failures introduced by this change
• Lockfiles untouched
• Skill follows the checklist: "When to Activate", copy-pasteable example, Anti-Patterns, folded description scalar, name matches directory, well under 500 lines. It is the ECC-adapted version of a skill I maintain and use; a reference implementation with reproducible numbers is linked in the SKILL.md.

Checklist

• Follows format guidelines
• Tested with Claude Code
• No sensitive info (API keys, paths)
• Clear descriptions

[ecc-tools]

ECC bundle files are already tracked in this repository. Skipping generation of another bundle PR.

[coderabbitai]

📝 Walkthrough

Walkthrough

Adds the otif-analysis skill, registers it for installation and packaging, and synchronizes English and Chinese plugin documentation to report 279 skills.

Changes

OTIF analysis skill

Layer / File(s)	Summary
OTIF analysis workflow skills/otif-analysis/SKILL.md	Defines OTIF data requirements, metric-ladder calculations, gap analysis, anti-patterns, output structure, and related skills.
Skill registration and packaging agent.yaml, manifests/install-modules.json, package.json	Registers otif-analysis in the skill list, installation paths, and published package files.
Catalog and documentation counts .claude-plugin/*, AGENTS.md, README*, docs/zh-CN/*	Updates plugin metadata and documentation references from 278 to 279 skills.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• affaan-m/ECC#2118: Updates the same skill-count metadata and documentation fields.
• affaan-m/ECC#2202: Adds a skill while synchronizing catalog counts and packaging.
• affaan-m/ECC#2230: Updates shared skill-count strings across manifests and documentation.

Suggested reviewers: affaan-m

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly and concisely states the main change: adding the otif-analysis skill.
Description check	✅ Passed	The description is directly related to the change and accurately summarizes the new skill, integrations, and validation.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[greptile-apps]

Greptile Summary

This PR adds a new OTIF analysis skill and wires it into the catalog. The main changes are:

• New skills/otif-analysis/SKILL.md workflow content.
• Registration in agent.yaml, package.json, and manifests/install-modules.json.
• Skill-count updates across English and Chinese docs plus plugin metadata.

Confidence Score: 4/5

The new skill is mostly wired correctly, but the external reference needs a clearer third-party boundary before merging.

• Skill registration and catalog-count updates line up with the new directory.
• The new skill points to a personal GitHub repository from an ECC-origin instruction surface.
• A short disclaimer or official-surface replacement would make the provenance clear.

skills/otif-analysis/SKILL.md

Security Review

The new skill includes an agent-facing link to a non-ECC GitHub repository without a clear third-party warning, which can create supply-chain trust confusion.

Important Files Changed

Filename	Overview
skills/otif-analysis/SKILL.md	Adds the OTIF workflow, examples, anti-patterns, and related skills; the external reference should be clearly marked as third-party.
agent.yaml	Registers otif-analysis in the skill list.
manifests/install-modules.json	Adds the new skill to the supply-chain-domain install module.
package.json	Adds the new skill directory to the package files surface.
README.md	Updates tracked English skill-count references to 279.
AGENTS.md	Updates workspace skill-count references to 279.
README.zh-CN.md	Updates the Chinese quick-start skill count to 279.
docs/zh-CN/README.md	Updates tracked Chinese README skill-count references to 279.
docs/zh-CN/AGENTS.md	Updates Chinese workspace skill-count references to 279.
.claude-plugin/plugin.json	Updates the plugin description skill count to 279.
.claude-plugin/marketplace.json	Updates the marketplace description skill count to 279.

_{Reviews (1): Last reviewed commit: "feat(skills): add otif-analysis skill" | Re-trigger Greptile}

[greptile-apps]

Third-Party Reference Looks Official

This ECC-origin skill labels a personal GitHub repository as the reproducible reference implementation. When an agent uses the skill to help a user reproduce the analysis, it can present that repo as ECC-endorsed and lead the user toward code outside the official distribution surfaces.

Suggested change

	Reference implementation with reproducible numbers and charts: <https://github.com/gulmezeren2-byte/otif-analytics>
	Third-party reference implementation with reproducible numbers and charts: <https://github.com/gulmezeren2-byte/otif-analytics>. Review this repository before using or running any code from it; it is not an official ECC distribution surface.

Rule Used: Ensure package and distribution claims only list o... (source)

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[daltino]

The PR adds a new skill, increasing the total skill count from 278 to 279, and updates related documentation for consistency across the plugin and repo files. The changes are straightforward, align with the contribution guidelines, and maintain consistency throughout .claude-plugin files, documentation, and translation files. Everything looks good to merge.