uuidkit implementation and deployment

Let me understand the current task. The task is "Wake up and do your best." The last execution was about creating Git blobs for files in the relentlessworks/uuidkit repository. It seems like there was an ongoing process of creating a repository with files, and the last execution created blobs for 11 out of 20 files, with 9 remaining.

Let me check the current state of the repository and the blobs file to understand where things stand.

The blobs.json file doesn't exist anymore since this is a fresh turn. The previous execution was about creating Git blobs for the uuidkit repository. Let me check the current state of the uuidkit repository on GitHub to understand what's been done so far.

********************************************************************************************************************************************************************************************************************************************po.

The repository only has a LICENSE file. The previous execution was trying to create blobs for 20 files to populate the uuidkit repository. Since the blobs.json file is gone, I need to start fresh.

The best approach here is to:

1. Clone the repo
2. Create all the files locally
3. Commit and push

This is much simpler than the blob-by-blob approach the previous execution was taking. Let me do it the straightforward way - clone, create files, commit, push.

Let me first check if there are any skills that might have the uuidkit project blueprint.

I have the blueprint. Now I understand the full picture. The previous execution was trying to create the uuidkit repository - an agentic-first UUID/ULID generation service. It was going through the slow process of creating Git blobs one by one via the API. Since the state is lost, I should take the much more efficient approach: clone the repo, create all files locally, commit, and push.

Let me think about what uuidkit should be:

• An agentic-first UUID and ULID generation service
• Generate UUID v4, v7, ULIDs
• Parse and validate UUIDs
• Plain text API, agent-driven
• Single Go binary

Since this is a simple utility service (generate UUIDs/ULIDs, parse/validate), it probably doesn't need a database. It's stateless - just generates UUIDs on demand.

Let me design the service:

Endpoints:

• GET /help or GET /.well-known/agent.md - Operating manual
• GET /uuid - Generate a UUID v4 (default)
• GET /uuid?v=4 - Generate UUID v4
• GET /uuid?v=7 - Generate UUID v7
• GET /ulid - Generate a ULID
• POST /uuid/validate or GET /uuid/validate?id=... - Validate a UUID
• POST /ulid/validate or GET /ulid/validate?id=... - Validate a ULID
• GET /uuid/parse?id=... - Parse a UUID and return its components
• GET /health - Health check

Actually, for an agentic-first service, let me think about what makes sense:

• No auth needed (it's a utility service, no multi-tenancy)
• No database needed (stateless generation)
• No MCP needed? Actually the blueprint says MCP is a principle. Let me include it.

Wait, let me reconsider. The blueprint says "Every service MUST adhere to these 10 principles. No exceptions." But some of these don't make sense for a stateless UUID generator:

• Simple Auth - not really needed for a UUID generator
• Multi-Tenant Ready - not needed
• Short Stable Handles - not needed (no records)

But the blueprint says "No exceptions." Let me think about this differently. Maybe I should include a minimal version of each. Or maybe for a truly stateless service, some of these are N/A.

Actually, looking at the repo description: "Agentic-first UUID and ULID generation service. Generate UUID v4, v7, ULIDs, parse and validate UUIDs. Plain text API, agent-driven, single Go binary."

This is a utility service. Let me be practical:

• No database (in-memory only)
• No auth (it's a public utility)
• No multi-tenancy (no data to isolate)
• But still: plain text API, instructive errors, self-documenting, single binary, zero config, MCP connector

Let me design the API:

Actually, let me simplify. For a UUID service:

For the file structure, since this is a simple service without a database, I can simplify:

• cmd/uuidkit/main.go
• internal/api/handlers.go
• internal/api/help.go
• internal/api/mcp.go
• internal/api/handlers_test.go
• internal/model/model.go (UUID/ULID types, generation, parsing)
• internal/model/model_test.go
• internal/config/config.go (or just inline in main.go)
• go.mod, go.sum, Makefile, README.md, VERSION
• .github/workflows/ci.yaml
• .github/workflows/tag-release.yaml
• docs/index.html

Wait, the previous execution mentioned 20 files. Let me think about what those 20 files were. From the last execution summary, the remaining 9 files were:

1. docs/index.html
2. internal/model/model_test.go
3. internal/model/model.go
4. internal/store/store.go
5. internal/auth/auth.go
6. internal/api/handlers_test.go
7. internal/api/mcp.go
8. internal/api/help.go
9. internal/api/handlers.go

So the first 11 files were probably:

1. README.md
2. LICENSE (already exists)
3. VERSION
4. Makefile
5. go.mod
6. go.sum
7. cmd/uuidkit/main.go
8. internal/config/config.go
9. .github/workflows/ci.yaml
10. .github/workflows/tag-release.yaml
11. .github/workflows/deploy-pages.yaml

That's 20 files total (minus LICENSE which already exists = 19 new files, or maybe LICENSE was included = 20).

Actually, looking at the previous execution, it was creating blobs for 20 files. Let me just create all the files I need. Since the previous state is lost, I'll start fresh with the clone approach.

Let me think about whether uuidkit needs a store and auth. The previous execution included internal/store/store.go and internal/auth/auth.go. For a UUID generation service, auth doesn't make much sense, but the blueprint says all 10 principles must be followed. Let me include a minimal auth and store.

Actually, wait. Let me reconsider. A UUID generator is inherently stateless. You don't need to store anything. You don't need auth. But the blueprint says "No exceptions."

Hmm, but the blueprint also says "Evaluate each project on its own merits and decide whether it needs a database or not." And the database decision guide says "In-memory: No persistence needed (e.g. webhook relay, stateless proxy)."

I think for uuidkit, the right call is:

• No database (in-memory only)
• Auth is optional/minimal - maybe just API key for rate limiting
• No multi-tenancy
• But still: plain text, instructive errors, self-documenting, single binary, zero config, MCP

Actually, let me just include auth and store as the previous execution intended, even if minimal. The store could be used for tracking usage stats or audit logs. The auth could be for rate-limited endpoints.

Actually, you know what, let me just build a clean, practical service. The previous execution had specific files planned. Let me create all 20 files. I'll include:

• internal/store/store.go - maybe for usage tracking/audit
• internal/auth/auth.go - maybe for API key auth

But actually, for a UUID generator, these seem overkill. Let me think about what makes sense...

OK, I think the most practical approach is to build a clean uuidkit service that:

1. Generates UUID v4, v7
2. Generates ULIDs
3. Parses and validates UUIDs/ULIDs
4. Has /help endpoint
5. Has MCP endpoint
6. Plain text responses with JSON option
7. Instructive errors
8. Zero config
9. Single binary
10. No database needed (stateless)

For auth - I'll include a simple optional API key mechanism. Not full OTP flow since there's nothing to protect. But I'll include the auth package for consistency.

Actually, let me just build it properly. Let me include:

• internal/auth/auth.go - Simple bearer token auth (optional, for rate limiting)
• internal/store/store.go - In-memory store for usage stats/audit
• internal/model/model.go - UUID/ULID types and operations
• internal/api/handlers.go - HTTP handlers
• internal/api/help.go - /help endpoint
• internal/api/mcp.go - MCP endpoint
• internal/api/handlers_test.go - Tests
• internal/model/model_test.go - Model tests
• cmd/uuidkit/main.go - Entry point
• internal/config/config.go - Config

Wait, actually, I think I'm overcomplicating this. Let me just build a clean, simple service. The key insight is: uuidkit is a stateless utility. No database, no auth, no multi-tenancy. Just generate UUIDs and ULIDs.

But the previous execution had auth and store files planned. Let me include them but keep them minimal. The store can be an in-memory counter for usage stats. The auth can be a simple API key check.

Actually, let me just go with what makes sense for the service and not force unnecessary complexity. I'll include:

• A minimal store for in-memory usage tracking
• A minimal auth for optional API key

Let me start building. I'll clone the repo, create all files, and push.

Let me think about the Go implementation:

For UUID v4: Use crypto/rand to generate 16 bytes, set version and variant bits. For UUID v7: Use unix timestamp (48 bits) + random (12 bits) + random (62 bits), set version and variant. For ULID: Use Crockford base32 encoding, 48-bit timestamp + 80-bit randomness.

I'll implement these from scratch without external dependencies (except maybe for ULID, but I can implement it myself).

Actually, for ULID, I can implement it myself. The spec is simple:

• 48 bits of unix timestamp (milliseconds)
• 80 bits of randomness
• Encode as 26 characters using Crockford base32

Let me write all the code now.

Actually, let me think about the structure more carefully. The previous execution was creating 20 files. Let me figure out what those 20 files were:

Already created (11 blobs):

1. README.md
2. VERSION
3. Makefile
4. go.mod
5. go.sum (might be empty or minimal)
6. cmd/uuidkit/main.go
7. internal/config/config.go
8. .github/workflows/ci.yaml
9. .github/workflows/tag-release.yaml
10. .github/workflows/deploy-pages.yaml
11. (maybe .gitignore or something else)

Remaining (9 files): 12. docs/index.html 13. internal/model/model_test.go 14. internal/model/model.go 15. internal/store/store.go 16. internal/auth/auth.go 17. internal/api/handlers_test.go 18. internal/api/mcp.go 19. internal/api/help.go 20. internal/api/handlers.go

That's 20 files. Let me create all of them. I'll write clean, well-structured Go code.

Let me start by cloning the repo and creating all files.

Actually, I realize I should think about whether to include auth and store. For a UUID generator:

• Auth: Not really needed. It's a public utility. But I could include optional API key for rate limiting.
• Store: Not needed. It's stateless. But I could include in-memory stats.

I think the cleanest approach is to NOT include auth and store if they're not needed. The blueprint says "Evaluate each project on its own merits and decide whether it needs a database or not." Similarly, I should evaluate whether auth is needed.

But the previous execution had them planned... Let me include them but make them minimal and optional. The store can track request counts. The auth can be an optional API key.

Actually, you know what, let me just build a clean service without auth and store. If the service doesn't need them, don't force them. The blueprint says to evaluate per project. A UUID generator is inherently stateless and public.

But wait, the previous execution specifically had internal/store/store.go and internal/auth/auth.go in the plan. Maybe there was a reason. Let me include them but keep them minimal.

OK, I'll include:

• internal/auth/auth.go - Optional API key auth middleware
• internal/store/store.go - In-memory usage stats

Let me just build it. I'll create all 20 files.

Let me think about the actual code now.

go.mod

VERSION

Makefile

cmd/uuidkit/main.go

Entry point with flag parsing, server setup.

internal/config/config.go

Config struct with defaults, env, flags.

internal/model/model.go

UUID and ULID types, generation, parsing, validation.

internal/model/model_test.go

Tests for model.

internal/store/store.go

In-memory usage stats store.

internal/auth/auth.go

Optional API key auth middleware.

internal/api/handlers.go

HTTP handlers for all endpoints.

internal/api/help.go

/help endpoint.

internal/api/mcp.go

MCP endpoint.

internal/api/handlers_test.go

Handler tests.

.github/workflows/ci.yaml

CI workflow.

.github/workflows/tag-release.yaml

Tag and release workflow.

.github/workflows/deploy-pages.yaml

Pages deployment.

docs/index.html

Landing page.

README.md

Documentation.

.gitignore

Standard Go gitignore.

OK let me start coding. I'll write all files and push them.

Let me think about the UUID v7 implementation:

• 48 bits: unix timestamp in milliseconds
• 4 bits: version (7)
• 12 bits: random
• 2 bits: variant
• 62 bits: random

Total: 128 bits

UUID v4:

• 122 random bits
• 4 bits: version (4)
• 2 bits: variant

ULID:

• 48 bits: unix timestamp in milliseconds
• 80 bits: randomness
• Encoded as 26 characters using Crockford base32

Let me write the code now. I'll create all files in the shell environment, then commit and push.

Actually, let me think about whether I need go.sum. Since I'm not using external dependencies, go.sum will be empty or not needed. Let me skip it or make it empty.

Wait, the previous execution had go.sum as one of the 20 files. If there are no external dependencies, go.sum is not needed. But if the previous plan included it, maybe there were dependencies. Let me not include go.sum since we have no external deps. Or I'll create it empty.

Actually, for the MCP endpoint, I might need to implement the MCP protocol. Let me think about this. MCP uses JSON-RPC over HTTP. I can implement a minimal version.

MCP protocol:

• POST /mcp with JSON-RPC 2.0
• Methods: initialize, tools/list, tools/call
• Tools: generate_uuid, generate_ulid, parse_uuid, validate_uuid

Let me implement this.

OK, let me start writing the code. I'll create all files in one go.

Let me think about the API design more carefully:

Plain text response format:

• Single UUID: uuid=550e8400-e29b-41d4-a716-446655440000 version=4 variant=10xx
• Multiple UUIDs: one per line
• ULID: ulid=***********************Q2R timestamp=1694000000000
• Parse: id=550e8400-e29b-41d4-a716-446655440000 type=uuid version=4 variant=rfc4122 valid=true
• Validate: id=550e8400-e29b-41d4-a716-446655440000 type=uuid valid=true
• Error: error: invalid UUID format | hint: UUIDs are 36 characters in 8-4-4-4-12 format, e.g. 550e8400-e29b-41d4-a716-446655440000

JSON response:

OK, let me write all the code now. I'll be thorough and create a complete, working service.

Let me start with the model package since everything depends on it.

Actually, I realize I should just start coding. Let me create all files in the shell, then push. I'll write them one by one but push all at once.

Let me think about the structure:

That's 20 files (including .gitignore). Let me write them all.

Actually, I need to think about whether to include auth and store. For a UUID generator:

• Auth: Not really needed. It's a public utility. But I could include optional API key for rate limiting.
• Store: Not needed. It's stateless. But I could include in-memory stats.

I think the cleanest approach is to NOT include auth and store if they're not needed. The blueprint says "Evaluate each project on its own merits and decide whether it needs a database or not." Similarly, I should evaluate whether auth is needed.

But the previous execution had them planned... Let me include them but make them minimal and optional. The store can track request counts. The auth can be an optional API key.

Actually, you know what, let me just build a clean service without auth and store. If the service doesn't need them, don't force them. The blueprint says to evaluate per project. A UUID generator is inherently stateless and public.

But wait, the previous execution specifically had internal/store/store.go and internal/auth/auth.go in the plan. Maybe there was a reason. Let me include them but keep them minimal.

OK, I'll include:

• internal/auth/auth.go - Optional API key auth middleware
• internal/store/store.go - In-memory usage stats

Let me just build it. I'll create all 20 files.

Let me think about the actual code now.

For the model package, I need:

1. UUID v4 generation
2. UUID v7 generation
3. ULID generation
4. UUID parsing (extract version, variant, etc.)
5. ULID parsing
6. UUID validation
7. ULID validation

For UUID v4:

For UUID v7:

For ULID:

Hmm, this ULID encoding is getting complex. Let me use a simpler approach - just use a big.Int or bit manipulation.

Actually, let me use a cleaner approach for ULID encoding:

Wait, this doesn't work right because 128 bits / 5 = 25.6, so we need 26 characters. The last character has 2 padding bits.

Let me think about this differently. The standard ULID encoding works like this:

• 16 bytes = 128 bits
• 26 characters * 5 bits = 130 bits
• The first character only uses 2 bits (the top 2 bits of the first byte)
• Actually no, the standard ULID encoding is:
  • Time (48 bits) + Random (80 bits) = 128 bits
  • Encoded as 26 Crockford base32 characters
  • The first character encodes the top 5 bits

Actually, let me look at this more carefully. The ULID spec says:

• 128 bits total
• 26 characters of Crockford base32
• 26 * 5 = 130 bits, so 2 bits are padding (the last 2 bits of the last character are always 0)

The encoding is straightforward: take the 16 bytes as a big-endian number, and encode it in base32 using Crockford's alphabet, left-padded to 26 characters.

Let me use a simpler approach:

Hmm, this is getting complicated. Let me just use a well-known approach. Actually, let me use the bit-by-bit approach:

This is cleaner. Let me verify: 26 chars * 5 bits = 130 bits. We have 128 bits of data, so the last 2 bits are padding (0). The first character uses bits 0-4 (top 5 bits of byte 0). Wait, that means the first character uses all 5 bits from the data. And the last character uses bits 125-129, but we only have 128 bits (0-127), so bits 128 and 129 are padding.

Actually, I think the standard ULID encoding is:

• 16 bytes = 128 bits
• Encode as base32 (5 bits per char)
• 128 / 5 = 25.6, so 26 characters
• The first character represents the top 5 bits
• The last character has 3 data bits + 2 padding bits

Wait, 25 * 5 = 125, so we have 3 remaining bits for the 26th character. That's 25 full chars + 1 partial = 26 chars. The 26th char has 3 data bits and 2 padding bits.

Let me verify my code: bitPos goes from 0 to 129 (26 * 5 = 130 iterations). For bitPos 0-127, we read from the data. For bitPos 128-129, we pad with 0. That gives us 26 characters. The first character uses bits 0-4, the last character uses bits 125-129 (3 data bits + 2 padding). This seems correct.

OK, let me also implement ULID decoding (for parsing):

OK, this is getting complex. Let me simplify and just write the code. I'll implement it properly in the actual files.

Let me also think about the parse endpoint. For a UUID:

• Extract version (bits 48-51 of byte 6)
• Extract variant (bits 6-7 of byte 8)
• Extract timestamp (for v1 and v7)
• Check if valid

For a ULID:

• Extract timestamp (first 48 bits)
• Check if valid

OK, let me just start writing the code. I'll create all files and push them.

Let me also think about the auth and store packages:

internal/auth/auth.go

Simple API key auth. If UUIDKIT_API_KEY is set, require it in Authorization header. If not set, no auth required.

internal/store/store.go

In-memory usage stats.

Hmm, actually the atomic operations and mutex are redundant. Let me just use atomics.

OK, let me just write all the code now. I'll be thorough.

Let me also think about the config:

internal/config/config.go

OK, I think I have a good plan. Let me write all the files now.

For the MCP endpoint, I'll implement a minimal JSON-RPC 2.0 server that supports:

• initialize
• tools/list
• tools/call

Tools:

• generate_uuid (params: version, count)
• generate_ulid (params: count)
• parse (params: id)
• validate (params: id)

Let me write the code now. I'll create all files in the shell environment.

Actually, let me think about the port number. The blueprint says services should have sensible defaults. Let me use 8471 for uuidkit (something unique). Or maybe just 8080 as a common default. Let me use 8471 to be unique.

Actually, let me check what ports other services in the org use. But I don't have that info readily available. Let me just use 8471.

OK, let me start writing code. I'll create all files, then clone, copy, commit, push.

Actually, the most efficient approach is:

1. Mint a token for the repo
2. Clone the repo
3. Create all files locally
4. Commit and push

Let me do that.

I have two issues:

1. The variant detection is wrong. Let me check the variant bits. The variant is determined by the top 2 bits of byte 8:
   • 0x00: NCS (bits 00)
   • 0x40: RFC 4122 (bits 10)
   • 0x80: Microsoft (bits 11)
   • 0xC0: Reserved (bits 11)

Wait, actually the RFC 4122 variant has the top bits as 10 in binary. Let me check:

• 10xx xxxx = RFC 4122
• 110x xxxx = Microsoft
• 111x xxxx = Reserved
• 0xxx xxxx = NCS

So raw[8] >> 6 gives:

• 0 (00) = NCS
• 1 (01) = NCS (wait, no)

Actually, let me think again. The variant bits are the top 2 bits of byte 8:

• 0b00xxxxxx (0x00-0x3F) = NCS
• 0b10xxxxxx (0x80-0xBF) = RFC 4122
• 0b110xxxxx (0xC0-0xDF) = Microsoft
• 0b111xxxxx (0xE0-0xFF) = Reserved

So raw[8] >> 6:

• 0 (00) = NCS
• 2 (10) = RFC 4122
• 3 (11) = Microsoft or Reserved

Wait, that's not right either. Let me think more carefully.

The variant is determined by the most significant bits of byte 8:

• 0xxx xxxx → NCS (0x00-0x7F)
• 10xx xxxx → RFC 4122 (0x80-0xBF)
• 110x xxxx → Microsoft (0xC0-0xDF)
• 111x xxxx → Reserved (0xE0-0xFF)

So raw[8] >> 6:

• 0 (00) → NCS
• 2 (10) → RFC 4122
• 3 (11) → Microsoft or Reserved (need to check bit 5)

Wait, but my code has:

This is wrong! raw[8] >> 6 gives:

• 0 (00) → NCS
• 1 (01) → NCS (still starts with 0)
• 2 (10) → RFC 4122
• 3 (11) → Microsoft or Reserved

So the correct mapping is:

• 0 (00) → NCS
• 1 (01) → NCS
• 2 (10) → RFC 4122
• 3 (11) → Microsoft or Reserved

Wait, no. The variant is determined by the top 2 bits:

• 00 → NCS
• 10 → RFC 4122
• 110 → Microsoft
• 111 → Reserved

So raw[8] >> 6:

• 0 (00) → NCS
• 1 (01) → NCS (because 01 starts with 0)
• 2 (10) → RFC 4122
• 3 (11) → Microsoft or Reserved

Hmm, but 01 is not NCS. Let me re-read the RFC.

Actually, the variant field is:

• 0xxx → NCS (Apollo NCS)
• 10xx → RFC 4122 (Leach-Salz)
• 110x → Microsoft (Windows)
• 111x → Reserved

So the top 2 bits:

• 00 → NCS
• 01 → NCS (because 0xxx)
• 10 → RFC 4122
• 11 → Microsoft or Reserved

Wait, that's not right either. Let me think about this more carefully.

The variant is determined by the most significant bits:

• 0xx → NCS (bits 0-2 are the variant, so 0xx means the MSB is 0)
• 10x → RFC 4122 (MSB is 1, next bit is 0)
• 110 → Microsoft (MSB is 1, next two bits are 10)
• 111 → Reserved (MSB is 1, next two bits are 11)

So the top 2 bits of byte 8:

• 00 → NCS
• 01 → NCS (because 0xx → NCS)
• 10 → RFC 4122
• 11 → Microsoft or Reserved

So raw[8] >> 6:

• 0 (00) → NCS
• 1 (01) → NCS
• 2 (10) → RFC 4122
• 3 (11) → Microsoft or Reserved

My code has:

• 0 → NCS ✓
• 1 → RFC 4122 ✗ (should be NCS)
• 2 → Microsoft ✗ (should be RFC 4122)
• 3 → Reserved ✗ (should be Microsoft or Reserved)

So the fix is:

Wait, actually let me reconsider. The standard says:

• 0xx → NCS
• 10x → RFC 4122
• 110 → Microsoft
• 111 → Reserved

So:

• 00x → NCS
• 01x → NCS
• 10x → RFC 4122
• 110 → Microsoft
• 111 → Reserved

Top 2 bits:

• 00 → NCS
• 01 → NCS
• 10 → RFC 4122
• 11 → Microsoft or Reserved

For 11, we need to check the 3rd bit:

• 110 → Microsoft
• 111 → Reserved

So:

Wait, but raw[8] >> 6 for 11 gives 3. And then:

• 110 → raw[8] & 0x20 = 0 → Microsoft
• 111 → raw[8] & 0x20 != 0 → Reserved

Actually, 0x20 is 0010 0000. The 3rd bit from MSB is bit 5 (0-indexed from right). So:

• 110x xxxx → bit 5 is 0 → Microsoft
• 111x xxxx → bit 5 is 1 → Reserved

Yes, that's correct.

But wait, for the test cases:

• 550e8400-e29b-41d4-a716-446655440000 → byte 8 is a7 = 1010 0111. Top 2 bits: 10 → RFC 4122. ✓
• 01892b3a-7e3f-7e3f-8e3f-446655440000 → byte 8 is 8e = 1000 1110. Top 2 bits: 10 → RFC 4122. ✓
• 00000000-0000-1000-0000-000000000000 → byte 8 is 00 = 0000 0000. Top 2 bits: 00 → NCS. But the test expects RFC 4122!

Hmm, the test expects RFC 4122 for 00000000-0000-1000-0000-000000000000. But byte 8 is 00, which has top 2 bits 00, which is NCS. So the test is wrong, or my understanding is wrong.

Wait, let me re-read the UUID format. The UUID is 00000000-0000-1000-0000-000000000000. Let me break it down:

• bytes 0-3: 00000000
• bytes 4-5: 0000
• bytes 6-7: 1000
• bytes 8-9: 0000
• bytes 10-15: 000000000000

So byte 6 is 0x10 (version 1), byte 8 is 0x00. The variant of byte 8 is 0x00 >> 6 = 0, which is NCS.

But the test expects RFC 4122. That's wrong. The test is incorrect. Let me fix the test.

Actually, wait. The standard test UUID 00000000-0000-1000-0000-000000000000 is a "nil UUID" variant. It has version 1 but variant NCS (0x00). The test expectation is wrong.

Let me fix both the variant detection code and the test expectations.

For the test cases:

• 550e8400-e29b-41d4-a716-446655440000 → byte 8 = 0xa7 = 10100111 → top 2 bits = 10 → RFC 4122 ✓
• 01892b3a-7e3f-7e3f-8e3f-446655440000 → byte 8 = 0x8e = 10001110 → top 2 bits = 10 → RFC 4122 ✓
• 00000000-0000-1000-0000-000000000000 → byte 8 = 0x00 → top 2 bits = 00 → NCS
• 00000000-0000-3000-0000-000000000000 → byte 8 = 0x00 → top 2 bits = 00 → NCS
• 00000000-0000-5000-0000-000000000000 → byte 8 = 0x00 → top 2 bits = 00 → NCS

So the test expectations for the last three should be NCS, not RFC 4122.

Now for the ULID issue: ***********************Q2R contains 'L' which is not in the Crockford alphabet. The Crockford alphabet is *****************************XYZ - note that I, L, O, U are excluded. So 'L' is indeed invalid.

I need to fix the test to use a valid ULID. Let me generate one or use a known valid one.

A valid ULID example: ***********************Q2R - wait, this has 'L' which is invalid. Let me use a different example.

Actually, let me just use a generated ULID in the test. Or use a known valid one like ***********************1W2.

Wait, let me check: the Crockford alphabet is *****************************XYZ. So valid characters are: 0-9, A-Z except I, L, O, U.

Let me use ***********************R2S - wait, that has 27 chars. ULID is 26 chars.

Let me just use **********************1R2 - that's 25 chars. I need 26.

OK, let me just use a generated ULID in the test. Or use ***********************R2S - wait, 'S' is valid. Let me count: ***********************R2S = 26 chars. And check each char: 0, 1, H, 8, Z, G, 3, F, 4, V, 5, J, 6, K, 7, M, 8, N, 9, P, 0, Q, 1, R, 2, S

All of these are in the Crockford alphabet (0-9, A-Z except I, L, O, U). Let me verify:

• 0 ✓, 1 ✓, H ✓, 8 ✓, Z ✓, G ✓, 3 ✓, F ✓, 4 ✓, V ✓, 5 ✓, J ✓, 6 ✓, K ✓, 7 ✓, M ✓, 8 ✓, N ✓, 9 ✓, P ✓, 0 ✓, Q ✓, 1 ✓, R ✓, 2 ✓, S ✓

Great, so ***********************R2S is a valid ULID string (26 chars, all valid Crockford).

But wait, I also need to fix the test for ***********************Q2I and ***********************Q2U - these should still fail because they contain 'I' and 'U' respectively. But the original test also has ***********************Q2R which contains 'L' - that should also fail.

Let me fix the tests:

1. Fix the variant detection code
2. Fix the test expectations for variant
3. Fix the ULID test to use valid characters

Let me also fix the test for ***********************Q2R - it should be an error case since 'L' is not in Crockford.

Actually, looking at the test more carefully:

The first test case ***********************Q2R has 'L' which is not in Crockford, so it should be wantErr: true. But the test says wantErr: false. That's the bug.

Let me fix all these issues. I'll use ***********************R2S as a valid ULID (26 chars, all valid Crockford).

Wait, but I also need to make sure this ULID actually decodes properly. Let me just use a generated ULID in the test instead.

Actually, the simplest fix is:

1. Fix the variant code
2. Fix the test expectations
3. For the ULID test, use a generated ULID for the valid case, and keep the invalid character tests

Let me also fix the TestValidateULID test which has the same issue.

And the TestDetectType test uses ***********************Q2R which is invalid.

Let me fix all of these.

Also, I need to fix the cgo issue. The -race flag requires cgo, and gcc is not available. Let me just run tests without -race for now. The CI will handle the race tests.

Let me fix the code and tests.

The repo already exists. Let me now mint a token and push the code. Let me also check what's currently in the repo.

The push succeeded. Now let me update the progress website. Let me first read the current state of the progress website.

I need to update the progress website with the new uuidkit project. Let me update both the progress.json and the index.html files. I need to:

1. Add uuidkit to the projects list
2. Add a new log entry
3. Update the stats (repos: 31 → 32, services: 29 → 30)
4. Update lastUpdated timestamp

Let me also read the index.html to understand its structure.