docs(01): complete foundation phase
- 2/2 plans executed and verified - REQ-01 (send/receive messages) satisfied - REQ-09 (user ID auth) satisfied - All 8 must-haves verified Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Lucas Berger
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---
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phase: 01-foundation
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verified: 2026-01-28T12:00:00Z
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status: passed
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score: 8/8 must-haves verified
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must_haves:
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truths:
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- "User can send a message to the Telegram bot"
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- "Bot responds only to authorized user ID"
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- "Unauthorized users receive no response (silent ignore)"
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- "Echo response includes original message and timestamp"
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- "Message sent to bot receives echo response"
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- "Echo includes original message text"
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- "Echo includes processing timestamp"
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- "Different Telegram user receives no response"
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artifacts:
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- path: "n8n-workflow.json"
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provides: "Complete n8n workflow definition"
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key_links:
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- from: "Telegram Trigger node"
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to: "IF node"
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via: "message.from.id check"
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- from: "IF node (true branch)"
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to: "Code node"
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via: "authenticated flow"
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- from: "Code node"
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to: "Telegram Send node"
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via: "echo message"
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---
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# Phase 1: Foundation Verification Report
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**Phase Goal:** Basic Telegram <-> n8n communication working
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**Verified:** 2026-01-28
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**Status:** PASSED
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**Re-verification:** No - initial verification
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## Goal Achievement
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### Observable Truths
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| # | Truth | Status | Evidence |
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|---|-------|--------|----------|
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| 1 | User can send a message to the Telegram bot | VERIFIED | Human confirmed "working" during Plan 01-02 Task 2 |
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| 2 | Bot responds only to authorized user ID | VERIFIED | IF node checks `$json.message.from.id` against hardcoded user ID; human confirmed |
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| 3 | Unauthorized users receive no response | VERIFIED | IF false branch is empty array `[]`; human confirmed "secure" in Task 3 |
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| 4 | Echo response includes original message and timestamp | VERIFIED | jsCode: `Got: ${text}\n\nProcessed: ${timestamp}` |
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| 5 | Message sent to bot receives echo response | VERIFIED | Human confirmed "working" during Plan 01-02 Task 2 |
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| 6 | Echo includes original message text | VERIFIED | jsCode includes `Got: ${text}` |
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| 7 | Echo includes processing timestamp | VERIFIED | jsCode includes `new Date().toISOString()` and `Processed: ${timestamp}` |
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| 8 | Different Telegram user receives no response | VERIFIED | Human confirmed "secure" during Plan 01-02 Task 3 |
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**Score:** 8/8 truths verified
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### Required Artifacts
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| Artifact | Expected | Status | Details |
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|----------|----------|--------|---------|
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| `n8n-workflow.json` | Complete n8n workflow definition | VERIFIED | 127 lines, valid JSON, all 4 nodes present with correct types |
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### Artifact Deep Verification: n8n-workflow.json
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**Level 1 - Existence:** EXISTS (127 lines)
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**Level 2 - Substantive:**
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- Line count: 127 lines (exceeds 10-line minimum)
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- Stub patterns: None found (no TODO, FIXME, placeholder)
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- Real code: jsCode contains actual implementation with timestamp formatting
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- Status: SUBSTANTIVE
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**Level 3 - Wired (Internal):**
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- Note: This is a config file for n8n import, not source code
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- Internal wiring verified via connections object
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### Key Link Verification
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| From | To | Via | Status | Details |
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|------|-----|-----|--------|---------|
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| Telegram Trigger | IF User Authenticated | connections.main[0] | WIRED | Line 83-92: Trigger outputs to IF node |
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| IF node (true) | Format Echo | connections.main[0] | WIRED | Line 94-102: First output goes to Code node |
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| IF node (false) | (nothing) | connections.main[1] | WIRED | Line 103: Empty array `[]` - silent ignore |
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| Format Echo | Send Echo | connections.main[0] | WIRED | Line 106-114: Code outputs to Telegram Send |
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**Node Type Verification:**
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| Node | Expected Type | Actual Type | Status |
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|------|--------------|-------------|--------|
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| Telegram Trigger | n8n-nodes-base.telegramTrigger | n8n-nodes-base.telegramTrigger | MATCH |
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| IF User Authenticated | n8n-nodes-base.if | n8n-nodes-base.if | MATCH |
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| Format Echo | n8n-nodes-base.code | n8n-nodes-base.code | MATCH |
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| Send Echo | n8n-nodes-base.telegram | n8n-nodes-base.telegram | MATCH |
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### Authentication Logic Verification
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The IF node condition (line 28-39):
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```json
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{
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"leftValue": "={{ $json.message.from.id.toString() }}",
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"rightValue": "563878771",
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"operator": { "type": "string", "operation": "equals" }
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}
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```
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- Checks incoming message sender ID
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- Compares against hardcoded authorized user ID
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- Note: Originally planned to use `$env.TELEGRAM_USER_ID` but n8n CE blocks env var access in expressions
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- Deviation documented in 01-02-SUMMARY.md and fixed in commit `23c5705`
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### Echo Format Verification
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The Code node jsCode (line 51):
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```javascript
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const message = $input.item.json.message;
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const timestamp = new Date().toISOString();
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const text = message.text || '(no text)';
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return {
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json: {
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chatId: message.chat.id,
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text: `Got: ${text}\n\nProcessed: ${timestamp}`
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}
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};
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```
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- Extracts original message text
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- Generates ISO timestamp
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- Formats echo response with both elements
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- Passes chatId for reply routing
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### Requirements Coverage
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| Requirement | Status | Verification |
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|-------------|--------|--------------|
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| REQ-01 (Send/receive messages) | SATISFIED | Human verified message round-trip works |
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| REQ-09 (User ID authentication) | SATISFIED | IF node checks user ID; unauthorized users silently ignored |
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### Anti-Patterns Found
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| File | Line | Pattern | Severity | Impact |
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|------|------|---------|----------|--------|
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| (none) | - | - | - | - |
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No anti-patterns detected in n8n-workflow.json.
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### Human Verification Completed
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The following was verified by the user during plan execution:
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| Test | Result | Timestamp |
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|------|--------|-----------|
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| Echo response to authorized user | "working" | Plan 01-02 Task 2 |
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| Silent ignore for unauthorized user | "secure" | Plan 01-02 Task 3 |
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### Gaps Summary
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No gaps found. All must-haves verified:
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- Artifact exists and is substantive
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- All internal connections wired correctly
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- All observable truths confirmed (4 via artifact inspection, 4 via human verification)
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- Both requirements (REQ-01, REQ-09) satisfied
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## Conclusion
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Phase 1: Foundation has achieved its goal. Basic Telegram <-> n8n communication is working with:
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- Message receipt via Telegram Trigger
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- User authentication via IF node checking user ID
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- Silent ignore for unauthorized users
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- Echo response with original message and timestamp
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- Send via Telegram Send node
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The phase is ready to proceed to Phase 2: Docker Integration.
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---
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*Verified: 2026-01-28*
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*Verifier: Claude (gsd-verifier)*
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