Evaluate and shortlist audit firms with weighted selection criteria, an RFP template and a scoring matrix, including combined SOC 2 and ISO 27001 engagements. Use when the user needs to pick an auditor or certification body, compare audit firm quotes, or write an RFP for an audit.
Installs into .claude/skills of the current project.
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---
name: compliance-auditor-selection
description: Evaluate and shortlist audit firms with weighted selection criteria, an RFP template and a scoring matrix, including combined SOC 2 and ISO 27001 engagements. Use when the user needs to pick an auditor or certification body, compare audit firm quotes, or write an RFP for an audit.
metadata:
argument-hint: "[project] [--skip-checks]"
workflow: compliance
phase: 3
artifact: 03-certify.md
---
# Auditor Selection
Evaluate and select audit firms for "$ARGUMENTS" based on industry expertise, regulation experience, cost, and timeline to find the best fit for the organization's certification goals.
**Arguments.** `$ARGUMENTS` may contain the project name and optional flags. Take the first token as `<project>` and treat `--skip-checks` as a flag; never include flags in file paths. All paths below use `<project>`. If `--skip-checks` is present, skip the prerequisite check and, **before writing any artifact**, append one line to `.singularskills/log.jsonl`: `{"ts":"<ISO timestamp>","skill":"compliance-auditor-selection","workflow":"compliance","phase":3,"project":"<project>","event":"skipped","artifact":"03-certify.md","note":"<reason or \"none given\">"}`.
## Prerequisites
**Part of a workflow.** This skill is phase 3 (Certify) of the GRC Lifecycle workflow (`compliance`); cross-domain workflows run it too. First check `.singularskills/log.jsonl` for an open run for this project: a `run-started` line with `"project":"<project>"` and no later `run-finished` line for the same `workflow` and `project`. If one exists, the conductor is running you: continue here. Otherwise, if the user asked to start, run, continue or resume a process or workflow rather than this one step, do not continue here: invoke the `workflow` skill with the workflow the user asked for, or `compliance` when they named none, followed by `<project>`; it runs this phase in order, asks before it writes and records the run. Otherwise continue here: a later phase runs on its own, behind its gate.
Run this skill's gate before writing: `sh <this skill's folder>/scripts/gate.sh <project> <project root>`, where `<project root>` is the folder that contains `.singularskills/` (use `.` when you are already there). If it exits non-zero, stop and tell the user what it printed, unless `--skip-checks` was given (see Arguments). On a refusal, before you stop, append this line to `.singularskills/log.jsonl` (create the folder and file if missing): `{"ts":"<ISO timestamp>","skill":"compliance-auditor-selection","workflow":"compliance","phase":3,"project":"<project>","event":"refused","artifact":"03-certify.md","note":"<what the gate printed>"}`. Once the gate has passed, or under `--skip-checks` once you have appended the `skipped` line, append this line before you start work: `{"ts":"<ISO timestamp>","skill":"compliance-auditor-selection","workflow":"compliance","phase":3,"project":"<project>","event":"started","artifact":"03-certify.md","note":""}`.
Read `.singularskills/compliance/<project>/00-scope.md`. If this file does not exist, tell the user:
> Phase 0 (Scope) has not been completed for "<project>". Run `/compliance-regulatory-landscape <project>` first, or use `--skip-checks` to bypass.
## Process
1. **Read context files:**
- Read `references/grc-lifecycle-guide.md` for GRC methodology reference
- Read `.singularskills/compliance/<project>/00-scope.md` for scope and applicable regulations
- Read `.singularskills/compliance/<project>/03-certify.md` for audit readiness status
2. **Define selection criteria:**
- Industry expertise — experience with organization's sector
- Regulation experience — certifications the firm can audit (SOC 2, ISO 27001, HIPAA, etc.)
- Geographic coverage — can they audit all relevant locations?
- Team size and availability — can they staff the engagement in the desired window?
- Cost — engagement fees, travel costs, additional charges
- Timeline — availability for desired audit window
- References — client references in similar industry/size
- Combined audit capability — can they audit multiple standards simultaneously?
3. **Create shortlist:**
- Identify 3-5 candidate audit firms
- Research firm reputation, specializations, and recent engagements
- Consider Big 4, mid-tier, and boutique firms based on organization size and needs
- Check for conflicts of interest
4. **Prepare RFP:**
- Define scope — regulations, locations, systems in scope
- Define timeline — desired audit window, report delivery date
- Define deliverables — audit report, management letter, certificate
- Request pricing structure — fixed fee vs. hourly, payment terms
- Request team qualifications — lead auditor experience, certifications held
- Request references — 2-3 comparable clients
5. **Evaluation framework:**
- Score each firm against selection criteria (weighted scoring)
- Evaluate RFP responses for completeness and quality
- Check references — ask about responsiveness, thoroughness, communication
- Negotiate terms — scope, timeline, pricing, re-audit clauses
- Consider combined audits (SOC 2 + ISO 27001 with same firm for efficiency and cost savings)
6. **Write the artifact** — append to `.singularskills/compliance/<project>/03-certify.md` under a `## Auditor Selection` section. Create the file with a `# Certify — <project>` heading if it does not exist; if a `## Auditor Selection` section already exists, replace only that section. The section contains:
- **Selection Criteria** — weighted criteria with scoring methodology
- **Candidate Shortlist** — firms under consideration with profiles
- **RFP Template** — prepared RFP for distribution
- **Evaluation Matrix** — scoring framework for comparing responses
- **Combined Audit Opportunities** — multi-standard audit possibilities
- **Recommended Next Steps** — timeline for RFP distribution, evaluation, and selection
## Output
The auditor selection plan appended to `.singularskills/compliance/<project>/03-certify.md`. Present a summary to the user highlighting:
- Selection criteria and weights
- Recommended number of firms to evaluate
- Combined audit opportunities identified
- Suggested timeline for selection process
**Record the run.** After you have written your section, append this line to `.singularskills/log.jsonl` (the `started` line of Prerequisites, with `"event":"finished"`): `{"ts":"<ISO timestamp>","skill":"compliance-auditor-selection","workflow":"compliance","phase":3,"project":"<project>","event":"finished","artifact":"03-certify.md","note":""}`.
This artifact is shared by every skill of phase 3 (Certify). The frontmatter is written once, by whoever creates the file: if you create it, open it with the block below (`skill` is the phase title, `started` the time of that first write; `gate` is `passed` when the gate ran clean and `skipped` under `--skip-checks`); if it already exists, leave the block alone except to update `finished` and to set `gate` to the worst value among the sections (`skipped` over `passed`).
```yaml
---
skill: Certify
workflow: compliance
phase: 3
project: <project>
started: <ISO timestamp>
finished: <ISO timestamp>
agent: <the agent you run in, or "unknown">
gate: <passed|skipped>
---
```
Open your `## Auditor Selection` section with one italic line, `*<skill name> · <ISO timestamp> · gate: <passed|skipped>*` (your skill name is `compliance-auditor-selection`).
End your section with `### Decisions` and `### Open questions` (one level under your `## Auditor Selection` heading, so the section stays one block), in this shape:
```markdown
### Decisions
- <what was chosen> — <why> — <what was rejected>
### Open questions
- <what the next phase or a reviewer must settle>
```
End the artifact with this paragraph, verbatim:
> **Not legal or audit advice.** This artifact supports preparation for compliance work; certification, attestation and regulatory conclusions require a qualified auditor or counsel.