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claudetools/session-logs/2026-04-20-session.md
Mike Swanson 056e36aeac refactor: optimize CLAUDE.md context footprint (-49%) 
Extract Ollama docs and PROJECT_STATE locking protocol to on-demand
reference files. Trim Work Mode to detection table only. Remove verbose
anti-pattern examples and credential encryption details.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-20 12:09:17 -07:00

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Session Log — 2026-04-20

User

  • User: Mike Swanson (mike)
  • Machine: DESKTOP-0O8A1RL
  • Role: admin

Session Summary

This session continued from a previous context that ran out of window. It covered two bodies of work:

  1. Remediation skill complete rewrite — Updated all skill files to reflect the new 5-app tiered Entra architecture (Security Investigator, Exchange Operator, User Manager, Tenant Admin, Defender Add-on) replacing the old single over-permissioned app.

  2. Cascades Tucson breach check on John Trozzi — Ran a full 10-point breach check after John reported spoofed email in his inbox. Mailbox confirmed clean; incident is inbound phishing, not account compromise.

Work 1: Remediation Skill Rewrite

Context (from prior session — summarized)

Previous session built out the full tiered MSP Entra app architecture:

  • Created all 5 apps + management app via ComputerGuru-Management SP
  • Granted admin consent in Grabblaw for Security Investigator + User Manager
  • Old app fabb3421 (ComputerGuru - AI Remediation) had 159 permissions including Defender ATP, which broke consent on tenants without MDE license (AADSTS650052)

Files Rewritten

D:/claudetools/.claude/skills/remediation-tool/scripts/get-token.sh

  • Completely rewritten: accepts <tenant-id|domain> <tier> instead of <tenant-id> <scope>
  • Tiers: investigator | investigator-exo | exchange-op | user-manager | tenant-admin | defender
  • Each tier maps to correct CLIENT_ID, vault SOPS path, and resource scope URL
  • Cache key is now {tenant}/{tier}.jwt (not {tenant}/{scope}.jwt)
  • Falls back through both credentials.client_secret and credentials.credential field names
  • Falls back to raw sops+python if vault.sh fails

D:/claudetools/.claude/skills/remediation-tool/SKILL.md

  • Added full app tier table with App IDs and vault files
  • Updated Exchange REST prerequisites to name correct SP per operation
  • Added minimum-privilege guidance ("never use tenant-admin for read-only check")

D:/claudetools/.claude/commands/remediation-tool.md

  • Rewrote token acquisition to use tier flags
  • Added per-app consent URLs in correct format (redirect_uri=https://azcomputerguru.com)
  • Added disable-smtp-auth action
  • Mapped each remediation action to its correct app tier (Exchange Operator for EXO write, User Manager for user ops)

D:/claudetools/.claude/skills/remediation-tool/references/gotchas.md

  • Full rewrite: 5-app suite table, per-app consent URLs, directory role map updated
  • Tenant table updated: Grabblaw now shows Security Investigator + User Manager consented (2026-04-20)
  • Migration note for Valleywide/Dataforth/Cascades (still on old app)
  • AADSTS650052 note for Defender tier on non-MDE tenants

D:/claudetools/.claude/skills/remediation-tool/references/checklist.md

  • False-positive filter updated to match any "ComputerGuru" app display name

D:/claudetools/.claude/skills/remediation-tool/references/graph-endpoints.md

  • Added token acquisition block at top with tier variable mapping
  • Exchange REST section now distinguishes $EXO_R (Security Investigator) from $EXO_W (Exchange Operator)

Vault Field Name Note

New SOPS files for the 5 apps were created in previous session. The field name for client secrets may be credentials.client_secret or credentials.credential. The updated get-token.sh tries both. If neither works on first use, check field with:

bash D:/vault/scripts/vault.sh get msp-tools/computerguru-security-investigator.sops.yaml

Work 2: Cascades Tucson — John Trozzi Breach Check

Trigger

John reported "spoofed email in his inbox." He forwarded the phishing email to howard@azcomputerguru.com and emailed Mike at 12:26 UTC with subject "Spoof emails."

Approach Note

Cascades Tucson still uses the OLD app (fabb3421) — the new Security Investigator hasn't been consented there yet. Used old app credentials from vault (msp-tools/claude-msp-access-graph-api.sops.yaml) for this investigation.

Tenant

  • Domain: cascadestucson.com
  • Tenant ID: 207fa277-e9d8-4eb7-ada1-1064d2221498
  • App used: fabb3421 (old app, still active at Cascades)

User

  • UPN: john.trozzi@cascadestucson.com
  • User ID: a638f4b9-6936-4401-a9b7-015b9900e49e
  • Last password change: 2026-04-16T16:05:11Z (self-service, after April 16 remediation)

10-Point Results — All Clean

Check Result
Graph inbox rules CLEAN — no custom rules
Exchange REST rules (incl. hidden) CLEAN — Junk E-mail Rule only
Mailbox forwarding CLEAN — null/false on all fields
Delegates / FullAccess CLEAN — no non-SELF
SendAs grants CLEAN — no non-SELF
OAuth consents CLEAN — BlueMail (2022) + EAS, both legitimate
Auth methods NOTE — duplicate Authenticator (SM-F731U null date), low risk
Sign-ins 30d CLEAN — all US/Phoenix, IP 184.191.143.62, no foreign access
Risky user CLEAN — riskLevel: none
Directory audits EXPECTED — April 16 sysadmin reset cycle + John self-service pw change

Incident Finding

John received phishing email:

  • Subject: "ATTN!! — Pending 5 (Pages) Documents expires in 2 days REF, ID:f1bb60a2a1d6ae023a3c3e0c0f959a8d"
  • Classic credential-harvesting lure
  • John correctly identified it, forwarded to Howard, reported to Mike
  • No evidence of link click or credential entry
  • Original email no longer in inbox/deleted — John deleted it

Google Account Alert

John received a security alert (16:01 UTC today) from no-reply@accounts.google.com for 201cascades@gmail.com. Possibly a shared facility account. Confirm it has 2FA.

DMARC Finding

_dmarc.cascadestucson.com: v=DMARC1;p=none;pct=100;rua=mailto:info@cascadestucson.com
cascadestucson.com SPF: v=spf1 ip4:72.194.62.5 include:spf.protection.outlook.com -all
  • SPF is tight (-all) — good
  • DMARC is p=none — monitoring only, no enforcement. Phishing emails can land in inboxes
  • Action needed: Upgrade to p=quarantine after confirming DKIM. Coordinate with Meredith.

Recommendations

  1. Confirm John didn't click anything or enter credentials (if he did: revoke-sessions + password-reset)
  2. Howard should delete the forwarded phishing email without clicking
  3. Upgrade DMARC to p=quarantine (coordinate with Meredith)
  4. Confirm DKIM is configured for cascadestucson.com in Exchange Online
  5. Verify 201cascades@gmail.com Google alert
  6. Clean up duplicate Authenticator entry (SM-F731U, null date) — low priority

Report Location

D:/claudetools/clients/cascades-tucson/reports/2026-04-20-breach-check-john-trozzi.md Committed: db157e3

Credentials Reference (from prior session — carried forward)

ComputerGuru-Management App (ACG home tenant)

  • App ID: 0df4e185-4cf2-478c-a490-cc4ef36c6118
  • Tenant ID: ce61461e-81a0-4c84-bb4a-7b354a9a356d
  • Secret: C8t8Q~.bN-q5kJ~ARhkK3oMgg~w6pQhRq3-IKc15
  • Vault: D:/vault/msp-tools/computerguru-management.sops.yaml
  • Permissions: Application.ReadWrite.All, AppRoleAssignment.ReadWrite.All, User.Read.All

ComputerGuru Security Investigator (multi-tenant, read-only breach checks)

  • App ID: bfbc12a4-f0dd-4e12-b06d-997e7271e10c
  • Secret: LS28Q~wHInqBB1y1TOWfwamKHBz~D2IFeSyUCcb0
  • Vault: D:/vault/msp-tools/computerguru-security-investigator.sops.yaml
  • Tenants consented: Grabblaw (032b383e) — Security Investigator + Exchange Admin role needed
  • Note: NOT YET CONSENTED at Cascades, Dataforth, Valleywide — still using old app there

ComputerGuru Exchange Operator (multi-tenant, EXO write)

  • App ID: b43e7342-5b4b-492f-890f-bb5a4f7f40e9
  • Secret: Ct28Q~fKYUu.RvkMaGNAV1YeK6h-HBewCTPnwa.Y
  • Vault: D:/vault/msp-tools/computerguru-exchange-operator.sops.yaml

ComputerGuru User Manager (multi-tenant, user/group write)

  • App ID: 64fac46b-8b44-41ad-93ee-7da03927576c
  • Secret: GEQ8Q~Xl0_Lrbq85QjEyUsvK9rMe1m-C.ze.0ahN
  • Vault: D:/vault/msp-tools/computerguru-user-manager.sops.yaml
  • Tenants consented: Grabblaw (032b383e)

ComputerGuru Tenant Admin (multi-tenant, high-privilege)

  • App ID: 709e6eed-0711-4875-9c44-2d3518c47063
  • Secret: GYe8Q~I-hzqK1hUsh2uUg6RVFwM1TQt8C7h8XaUm
  • Vault: D:/vault/msp-tools/computerguru-tenant-admin.sops.yaml

ComputerGuru Defender Add-on (multi-tenant, MDE only)

  • App ID: dbf8ad1a-54f4-4bb8-8a9e-ea5b9634635b
  • Secret: r1h8Q~L4kPb3STTjazbxNDsYw3JuHm1yIhTy5bqM
  • Vault: D:/vault/msp-tools/computerguru-defender-addon.sops.yaml

Old App (DEPRECATED — still active at Cascades/Dataforth/Valleywide)

  • App ID: fabb3421-8b34-484b-bc17-e46de9703418
  • Display name: ComputerGuru - AI Remediation
  • Vault: D:/vault/msp-tools/claude-msp-access-graph-api.sops.yaml → field: credentials.credential
  • Status: Retire after migrating remaining tenants to new app suite

Mike's Entra User ID (for app ownership)

  • Object ID: f34ebe40-9565-4135-af4c-2e808df57a25
  • ACG Tenant: ce61461e-81a0-4c84-bb4a-7b354a9a356d

Grabblaw

  • Tenant ID: 032b383e-96e4-491b-880d-3fd3295672c3
  • Svetlana Larionova: slarionova@grabblaw.com (created 2026-04-20, temp pw: TempGrabb2026!, User ID: affab40c-5535-4c1a-9a78-a2eda1a4a3b7)
  • License: M365 Business Premium (f245ecc8-75af-4f8e-b61f-27d8114de5f3)
  • Apps consented: Security Investigator, User Manager
  • Directory roles: none assigned yet (no Exchange Admin on either SP)

Cascades Tucson

  • Tenant ID: 207fa277-e9d8-4eb7-ada1-1064d2221498
  • Apps: Still using old app fabb3421. New app not yet consented.
  • Directory roles (old app): Exchange Administrator, User Administrator

Pending Items

MSP App Suite Migration

  • Consent Security Investigator at Cascades, Dataforth, Valleywide
  • Assign Exchange Administrator role to Security Investigator SP in Cascades + Dataforth
  • Publisher verification on Apps 3-5 and Defender Add-on (MPN 6149186 — Arizona Computer Guru LLC)
  • Retire/delete old ComputerGuru - AI Remediation app (fabb3421) after migration

Cascades Tucson

  • Confirm John Trozzi didn't click phishing link / enter credentials
  • Howard: delete the forwarded phishing email
  • DMARC p=none → p=quarantine (after DKIM confirmed) — coordinate with Meredith
  • Confirm DKIM configured for cascadestucson.com in Exchange Online
  • Verify 201cascades@gmail.com Google security alert
  • Clean up duplicate John Authenticator entry (low priority)

azcomputerguru.com (from prior session)

  • Add ToS + Privacy URLs to new app registrations in portal (Branding & properties)
  • Vault cPanel credentials at clients/azcomputerguru/cpanel.sops.yaml
  • Add Windows SSH key to authorized_keys on 172.16.3.10
  • Reset mike WP password to permanent value and vault it

ClaudeTools

  • Add Windows SSH key to authorized_keys on 172.16.3.30

Update: 19:08 UTC — CLAUDE.md Optimization

Summary

Refactored .claude/CLAUDE.md to reduce context window pressure. Extracted verbose sections to on-demand reference files. No functional changes — same rules, smaller footprint.

Changes Made

.claude/CLAUDE.md — 494 lines → 252 lines (~49% reduction)

  • Work Mode section: replaced 22-line narrative with a 5-row detection table; dropped color references (color changes don't work programmatically anyway — mode.md handles that)
  • PROJECT_STATE.md Action Protocol: removed entirely (~65 lines) — moved to dedicated file
  • Ollama section: trimmed from ~90 lines to 5-line summary + pointer
  • Auto Context Loading: removed Benefits list, condensed anti-pattern examples to one sentence
  • Credential Access: kept the 4 vault commands, removed encryption/key location details

.claude/OLLAMA.md — new file (67 lines)

  • Full Ollama reference: endpoints, models, connection examples, review policy
  • Only loaded when Claude needs to call Ollama (Tier 0 tasks)

.claude/PROJECT_STATE_PROTOCOL.md — new file (42 lines)

  • Full locking protocol: what requires a lock, how to claim/release, stale lock rule
  • Only loaded when Auto Context Loading finds a PROJECT_STATE.md in a project

Decisions

  • PROJECT_STATE files already have brief locking instructions embedded in their headers — the full protocol in CLAUDE.md was redundant
  • Work mode colors were dropped from CLAUDE.md because /color is a CLI built-in Claude can't invoke programmatically; mode.md already has the authoritative detail
  • Ollama extraction was the biggest single win (~90 lines) — it's only needed for Tier 0 delegation, not every session

Pending

  • None. This was a self-contained optimization pass.

Key Infrastructure Reference

Resource Details
IX Web Hosting 172.16.3.10 (ext: 72.194.62.5) WHM port 2087
cPanel user azcomputerguru
WP DB azcomputerguru_acg2025, table prefix Lvkai5BQ_, mike/TempWP2026!
ClaudeTools API http://172.16.3.30:8001
GuruRMM server 172.16.3.30:3001
Gitea http://172.16.3.20:3000 (internal)
ACG Tenant ce61461e-81a0-4c84-bb4a-7b354a9a356d
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